64151287677690 has 64 divisors (see below), whose sum is σ = 154262917843200. Its totient is φ = 17073711749120.

The previous prime is 64151287677689. The next prime is 64151287677739. The reversal of 64151287677690 is 9677678215146.

It is a super-2 number, since 2×64151287677690² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64504000 + ... + 65490980.

It is an arithmetic number, because the mean of its divisors is an integer number (2410358091300).

Almost surely, 2^{64151287677690} is an apocalyptic number.

64151287677690 is an abundant number, since it is smaller than the sum of its proper divisors (90111630165510).

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

64151287677690 is a wasteful number, since it uses less digits than its factorization.

64151287677690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991207.

The product of its (nonzero) digits is 213373440, while the sum is 69.

The spelling of 64151287677690 in words is "sixty-four trillion, one hundred fifty-one billion, two hundred eighty-seven million, six hundred seventy-seven thousand, six hundred ninety".