257752580828 has 12 divisors (see below), whose sum is σ = 451291330392. Its totient is φ = 128812200720.

The previous prime is 257752580807. The next prime is 257752580861. The reversal of 257752580828 is 828085257752.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16013375 + ... + 16029462.

It is an arithmetic number, because the mean of its divisors is an integer number (37607610866).

Almost surely, 2^257752580828 is an apocalyptic number.

It is an amenable number.

257752580828 is a deficient number, since it is larger than the sum of its proper divisors (193538749564).

257752580828 is a wasteful number, since it uses less digits than its factorization.

257752580828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32044852 (or 32044850 counting only the distinct ones).

The product of its (nonzero) digits is 25088000, while the sum is 59.

The spelling of 257752580828 in words is "two hundred fifty-seven billion, seven hundred fifty-two million, five hundred eighty thousand, eight hundred twenty-eight".