257350427880 has 128 divisors (see below), whose sum is σ = 950217004800. Its totient is φ = 54298109952.

The previous prime is 257350427861. The next prime is 257350427909. The reversal of 257350427880 is 88724053752.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11772525 + ... + 11794364.

It is an arithmetic number, because the mean of its divisors is an integer number (7423570350).

Almost surely, 2^257350427880 is an apocalyptic number.

257350427880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

257350427880 is an abundant number, since it is smaller than the sum of its proper divisors (692866576920).

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

257350427880 is a wasteful number, since it uses less digits than its factorization.

257350427880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23566923 (or 23566919 counting only the distinct ones).

The product of its (nonzero) digits is 3763200, while the sum is 51.

The spelling of 257350427880 in words is "two hundred fifty-seven billion, three hundred fifty million, four hundred twenty-seven thousand, eight hundred eighty".