257411723238 has 48 divisors (see below), whose sum is σ = 561785342976. Its totient is φ = 85180500720.

The previous prime is 257411723221. The next prime is 257411723243. The reversal of 257411723238 is 832327114752.

257411723238 is a `hidden beast` number, since 2 + 574 + 1 + 1 + 72 + 3 + 2 + 3 + 8 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 257411723193 and 257411723202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2553003 + ... + 2651913.

It is an arithmetic number, because the mean of its divisors is an integer number (11703861312).

Almost surely, 2^257411723238 is an apocalyptic number.

257411723238 is an abundant number, since it is smaller than the sum of its proper divisors (304373619738).

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

257411723238 is a wasteful number, since it uses less digits than its factorization.

257411723238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99969 (or 99966 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The spelling of 257411723238 in words is "two hundred fifty-seven billion, four hundred eleven million, seven hundred twenty-three thousand, two hundred thirty-eight".