257504746488 has 64 divisors (see below), whose sum is σ = 702512939520. Its totient is φ = 78006489600.

The previous prime is 257504746469. The next prime is 257504746529. The reversal of 257504746488 is 884647405752.

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, 667681 + ... + 980207.

It is an arithmetic number, because the mean of its divisors is an integer number (10976764680).

Almost surely, 2^257504746488 is an apocalyptic number.

It is an amenable number.

257504746488 is an abundant number, since it is smaller than the sum of its proper divisors (445008193032).

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

257504746488 is a wasteful number, since it uses less digits than its factorization.

257504746488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315668 (or 315664 counting only the distinct ones).

The product of its (nonzero) digits is 60211200, while the sum is 60.

The spelling of 257504746488 in words is "two hundred fifty-seven billion, five hundred four million, seven hundred forty-six thousand, four hundred eighty-eight".