64290319395957 has 16 divisors (see below), whose sum is σ = 95256072072000. Its totient is φ = 42855193428912.

The previous prime is 64290319395937. The next prime is 64290319395971. The reversal of 64290319395957 is 75959391309246.

64290319395957 is a `hidden beast` number, since 6 + 4 + 29 + 0 + 3 + 1 + 9 + 3 + 9 + 595 + 7 = 666.

It is not a de Polignac number, because 64290319395957 - 2⁷ = 64290319395829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64290319395937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139195782 + ... + 139656887.

It is an arithmetic number, because the mean of its divisors is an integer number (5953504504500).

Almost surely, 2^{64290319395957} is an apocalyptic number.

It is an amenable number.

64290319395957 is a deficient number, since it is larger than the sum of its proper divisors (30965752676043).

64290319395957 is a wasteful number, since it uses less digits than its factorization.

64290319395957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278861217 (or 278861211 counting only the distinct ones).

The product of its (nonzero) digits is 496011600, while the sum is 72.

The spelling of 64290319395957 in words is "sixty-four trillion, two hundred ninety billion, three hundred nineteen million, three hundred ninety-five thousand, nine hundred fifty-seven".