252873657864 has 32 divisors (see below), whose sum is σ = 702426828000. Its totient is φ = 84291219216.

The previous prime is 252873657847. The next prime is 252873657893. The reversal of 252873657864 is 468756378252.

252873657864 is a `hidden beast` number, since 2 + 5 + 28 + 7 + 36 + 578 + 6 + 4 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 585355474 + ... + 585355905.

It is an arithmetic number, because the mean of its divisors is an integer number (21950838375).

Almost surely, 2^252873657864 is an apocalyptic number.

252873657864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

252873657864 is an abundant number, since it is smaller than the sum of its proper divisors (449553170136).

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

252873657864 is a wasteful number, since it uses less digits than its factorization.

252873657864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170711394 (or 1170711384 counting only the distinct ones).

The product of its digits is 135475200, while the sum is 63.

The spelling of 252873657864 in words is "two hundred fifty-two billion, eight hundred seventy-three million, six hundred fifty-seven thousand, eight hundred sixty-four".