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64489557169498 = 299132537617139
BaseRepresentation
bin11101010100111001001010…
…01001011001010101011010
322110100010211010021011202211
432222130211021121111122
531423044103113410443
6345054032113345334
716404134226300226
oct1652344511312532
9273303733234684
1064489557169498
111960395a86803a
12729661226824a
1329ca45414ac36
1411cd44ddc3786
1576c7c49ae19d
hex3aa72525955a

64489557169498 has 8 divisors (see below), whose sum is σ = 96831948608640. Its totient is φ = 32212240966620.

The previous prime is 64489557169463. The next prime is 64489557169501. The reversal of 64489557169498 is 89496175598446.

64489557169498 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16268806588 + ... + 16268810551.

It is an arithmetic number, because the mean of its divisors is an integer number (12103993576080).

Almost surely, 264489557169498 is an apocalyptic number.

64489557169498 is a deficient number, since it is larger than the sum of its proper divisors (32342391439142).

64489557169498 is a wasteful number, since it uses less digits than its factorization.

64489557169498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32537618132.

The product of its digits is 18811699200, while the sum is 85.

The spelling of 64489557169498 in words is "sixty-four trillion, four hundred eighty-nine billion, five hundred fifty-seven million, one hundred sixty-nine thousand, four hundred ninety-eight".

Divisors: 1 2 991 1982 32537617139 65075234278 32244778584749 64489557169498