64608255292931 has 32 divisors (see below), whose sum is σ = 75079405440000. Its totient is φ = 54451685151360.

The previous prime is 64608255292921. The next prime is 64608255292951. The reversal of 64608255292931 is 13929255280646.

It is a happy number.

It is not a de Polignac number, because 64608255292931 - 2¹⁴ = 64608255276547 is a prime.

It is a super-2 number, since 2×64608255292931² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64608255292921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2328295445 + ... + 2328323193.

It is an arithmetic number, because the mean of its divisors is an integer number (2346231420000).

Almost surely, 2^{64608255292931} is an apocalyptic number.

64608255292931 is a deficient number, since it is larger than the sum of its proper divisors (10471150147069).

64608255292931 is a wasteful number, since it uses less digits than its factorization.

64608255292931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40259.

The product of its (nonzero) digits is 55987200, while the sum is 62.

The spelling of 64608255292931 in words is "sixty-four trillion, six hundred eight billion, two hundred fifty-five million, two hundred ninety-two thousand, nine hundred thirty-one".