257835900126 has 64 divisors (see below), whose sum is σ = 595576700928. Its totient is φ = 72890834688.

The previous prime is 257835900107. The next prime is 257835900163. The reversal of 257835900126 is 621009538752.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1924786 + ... + 2054378.

It is an arithmetic number, because the mean of its divisors is an integer number (9305885952).

Almost surely, 2^257835900126 is an apocalyptic number.

257835900126 is an abundant number, since it is smaller than the sum of its proper divisors (337740800802).

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

257835900126 is a wasteful number, since it uses less digits than its factorization.

257835900126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130105.

The product of its (nonzero) digits is 907200, while the sum is 48.

The spelling of 257835900126 in words is "two hundred fifty-seven billion, eight hundred thirty-five million, nine hundred thousand, one hundred twenty-six".