255131432868 has 48 divisors (see below), whose sum is σ = 641203274880. Its totient is φ = 78489272064.

The previous prime is 255131432819. The next prime is 255131432903. The reversal of 255131432868 is 868234131552.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 858121 + ... + 1116527.

It is an arithmetic number, because the mean of its divisors is an integer number (13358401560).

Almost surely, 2^255131432868 is an apocalyptic number.

It is an amenable number.

255131432868 is an abundant number, since it is smaller than the sum of its proper divisors (386071842012).

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

255131432868 is a wasteful number, since it uses less digits than its factorization.

255131432868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264756 (or 264754 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 48.

The spelling of 255131432868 in words is "two hundred fifty-five billion, one hundred thirty-one million, four hundred thirty-two thousand, eight hundred sixty-eight".