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78968267922851 = 1991087365064827
BaseRepresentation
bin10001111101001000111011…
…100011101101110110100011
3101100121021220100221001121022
4101331020323203231312203
540322304003042012401
6435541304345320055
722430161203140666
oct2175107343556643
9340537810831538
1078968267922851
11231862885a8aaa
128a346b519602b
13350a8a2703788
14157012806b6dd
1591e22c4aa71b
hex47d23b8edda3

78968267922851 has 8 divisors (see below), whose sum is σ = 79438106572800. Its totient is φ = 78499159405128.

The previous prime is 78968267922769. The next prime is 78968267922857. The reversal of 78968267922851 is 15822976286987.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78968267922851 - 210 = 78968267921827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78968267922857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182316101 + ... + 182748726.

It is an arithmetic number, because the mean of its divisors is an integer number (9929763321600).

Almost surely, 278968267922851 is an apocalyptic number.

78968267922851 is a deficient number, since it is larger than the sum of its proper divisors (469838649949).

78968267922851 is a wasteful number, since it uses less digits than its factorization.

78968267922851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365066113.

The product of its digits is 2926264320, while the sum is 80.

The spelling of 78968267922851 in words is "seventy-eight trillion, nine hundred sixty-eight billion, two hundred sixty-seven million, nine hundred twenty-two thousand, eight hundred fifty-one".

Divisors: 1 199 1087 216313 365064827 72647900573 396825466949 78968267922851