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76818422884968 = 23321066922540069
BaseRepresentation
bin10001011101110110101110…
…110011101110101001101000
3101001222202202222012120211100
4101131312232303232221220
540032043112224304333
6431213521333201400
722115643062626152
oct2135665663565150
9331882688176740
1076818422884968
1122527568080436
128747b12490260
1333b2c3ba3861b
1414d8062647ad2
158d335430d213
hex45ddaeceea68

76818422884968 has 24 divisors (see below), whose sum is σ = 208049895313650. Its totient is φ = 25606140961632.

The previous prime is 76818422884961. The next prime is 76818422884969. The reversal of 76818422884968 is 86948822481867.

It is a happy number.

76818422884968 is a `hidden beast` number, since 7 + 6 + 8 + 1 + 8 + 42 + 2 + 88 + 496 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 76814672302404 + 3750582564 = 8764398^2 + 61242^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×768184228849682 (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (76818422884961) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 533461269963 + ... + 533461270106.

Almost surely, 276818422884968 is an apocalyptic number.

It is an amenable number.

76818422884968 is an abundant number, since it is smaller than the sum of its proper divisors (131231472428682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

76818422884968 is a wasteful number, since it uses less digits than its factorization.

76818422884968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066922540081 (or 1066922540074 counting only the distinct ones).

The product of its digits is 4756340736, while the sum is 81.

The spelling of 76818422884968 in words is "seventy-six trillion, eight hundred eighteen billion, four hundred twenty-two million, eight hundred eighty-four thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 1066922540069 2133845080138 3200767620207 4267690160276 6401535240414 8535380320552 9602302860621 12803070480828 19204605721242 25606140961656 38409211442484 76818422884968