257701886812 has 12 divisors (see below), whose sum is σ = 453964914256. Its totient is φ = 127997625600.

The previous prime is 257701886797. The next prime is 257701886831. The reversal of 257701886812 is 218688107752.

257701886812 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

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, 213328773 + ... + 213329980.

Almost surely, 2^257701886812 is an apocalyptic number.

It is an amenable number.

257701886812 is a deficient number, since it is larger than the sum of its proper divisors (196263027444).

257701886812 is a wasteful number, since it uses less digits than its factorization.

257701886812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426658908 (or 426658906 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 55.

The spelling of 257701886812 in words is "two hundred fifty-seven billion, seven hundred one million, eight hundred eighty-six thousand, eight hundred twelve".