57256122818 has 8 divisors (see below), whose sum is σ = 85887397440. Its totient is φ = 28626990340.

The previous prime is 57256122787. The next prime is 57256122839. The reversal of 57256122818 is 81822165275.

57256122818 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×57256122818² (a number of 22 digits) contains 22 as substring.

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, 466958 + ... + 576681.

It is an arithmetic number, because the mean of its divisors is an integer number (10735924680).

Almost surely, 2^57256122818 is an apocalyptic number.

57256122818 is a deficient number, since it is larger than the sum of its proper divisors (28631274622).

57256122818 is a wasteful number, since it uses less digits than its factorization.

57256122818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071072.

The product of its digits is 537600, while the sum is 47.

The spelling of 57256122818 in words is "fifty-seven billion, two hundred fifty-six million, one hundred twenty-two thousand, eight hundred eighteen".