64614431356 has 24 divisors (see below), whose sum is σ = 113540858816. Its totient is φ = 32174288640.

The previous prime is 64614431311. The next prime is 64614431363. The reversal of 64614431356 is 65313441646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2825440 + ... + 2848216.

Almost surely, 2^64614431356 is an apocalyptic number.

It is an amenable number.

64614431356 is a deficient number, since it is larger than the sum of its proper divisors (48926427460).

64614431356 is a wasteful number, since it uses less digits than its factorization.

64614431356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25669 (or 25667 counting only the distinct ones).

The product of its digits is 622080, while the sum is 43.

The spelling of 64614431356 in words is "sixty-four billion, six hundred fourteen million, four hundred thirty-one thousand, three hundred fifty-six".