64877283868 has 24 divisors (see below), whose sum is σ = 115568203520. Its totient is φ = 31861486080.

The previous prime is 64877283829. The next prime is 64877283871. The reversal of 64877283868 is 86838277846.

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, 390588 + ... + 531331.

Almost surely, 2^64877283868 is an apocalyptic number.

It is an amenable number.

64877283868 is a deficient number, since it is larger than the sum of its proper divisors (50690919652).

64877283868 is a wasteful number, since it uses less digits than its factorization.

64877283868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922237 (or 922235 counting only the distinct ones).

The product of its digits is 173408256, while the sum is 67.

The spelling of 64877283868 in words is "sixty-four billion, eight hundred seventy-seven million, two hundred eighty-three thousand, eight hundred sixty-eight".