257749976922 has 32 divisors (see below), whose sum is σ = 517792226112. Its totient is φ = 85535218944.

The previous prime is 257749976863. The next prime is 257749976963. The reversal of 257749976922 is 229679947752.

257749976922 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 1642533 + ... + 1792599.

It is an arithmetic number, because the mean of its divisors is an integer number (16181007066).

Almost surely, 2^257749976922 is an apocalyptic number.

257749976922 is an abundant number, since it is smaller than the sum of its proper divisors (260042249190).

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

257749976922 is a wasteful number, since it uses less digits than its factorization.

257749976922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151342.

The product of its digits is 240045120, while the sum is 69.

The spelling of 257749976922 in words is "two hundred fifty-seven billion, seven hundred forty-nine million, nine hundred seventy-six thousand, nine hundred twenty-two".