57051128456 has 24 divisors (see below), whose sum is σ = 124435497870. Its totient is φ = 24450483456.

The previous prime is 57051128441. The next prime is 57051128471. The reversal of 57051128456 is 65482115075.

It is an interprime number because it is at equal distance from previous prime (57051128441) and next prime (57051128471).

It can be written as a sum of positive squares in only one way, i.e., 56677324900 + 373803556 = 238070^2 + 19334^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72768905 + ... + 72769688.

Almost surely, 2^57051128456 is an apocalyptic number.

57051128456 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

57051128456 is an abundant number, since it is smaller than the sum of its proper divisors (67384369414).

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

57051128456 is a wasteful number, since it uses less digits than its factorization.

57051128456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145538613 (or 145538602 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 44.

The spelling of 57051128456 in words is "fifty-seven billion, fifty-one million, one hundred twenty-eight thousand, four hundred fifty-six".