64474172265 has 32 divisors (see below), whose sum is σ = 105580379520. Its totient is φ = 33579334656.

The previous prime is 64474172249. The next prime is 64474172299. The reversal of 64474172265 is 56227147446.

It is not a de Polignac number, because 64474172265 - 2⁴ = 64474172249 is a prime.

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, 4399971 + ... + 4414599.

It is an arithmetic number, because the mean of its divisors is an integer number (3299386860).

Almost surely, 2^64474172265 is an apocalyptic number.

It is an amenable number.

64474172265 is a deficient number, since it is larger than the sum of its proper divisors (41106207255).

64474172265 is a wasteful number, since it uses less digits than its factorization.

64474172265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21513.

The product of its digits is 2257920, while the sum is 48.

The spelling of 64474172265 in words is "sixty-four billion, four hundred seventy-four million, one hundred seventy-two thousand, two hundred sixty-five".