255918772888 has 64 divisors (see below), whose sum is σ = 525728361600. Its totient is φ = 116249763840.

The previous prime is 255918772873. The next prime is 255918772903. The reversal of 255918772888 is 888277819552.

It is an interprime number because it is at equal distance from previous prime (255918772873) and next prime (255918772903).

It is a congruent number.

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, 24790768 + ... + 24801088.

It is an arithmetic number, because the mean of its divisors is an integer number (8214505650).

Almost surely, 2^255918772888 is an apocalyptic number.

It is an amenable number.

255918772888 is an abundant number, since it is smaller than the sum of its proper divisors (269809588712).

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

255918772888 is a wasteful number, since it uses less digits than its factorization.

255918772888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16660 (or 16656 counting only the distinct ones).

The product of its digits is 180633600, while the sum is 70.

The spelling of 255918772888 in words is "two hundred fifty-five billion, nine hundred eighteen million, seven hundred seventy-two thousand, eight hundred eighty-eight".