57436538887 has 24 divisors (see below), whose sum is σ = 74274571392. Its totient is φ = 43978334400.

The previous prime is 57436538869. The next prime is 57436538891. The reversal of 57436538887 is 78883563475.

57436538887 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 57436538887 - 2²⁷ = 57302321159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57436538857) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1434564 + ... + 1474057.

It is an arithmetic number, because the mean of its divisors is an integer number (3094773808).

Almost surely, 2^57436538887 is an apocalyptic number.

57436538887 is a deficient number, since it is larger than the sum of its proper divisors (16838032505).

57436538887 is a wasteful number, since it uses less digits than its factorization.

57436538887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2908679 (or 2908672 counting only the distinct ones).

The product of its digits is 135475200, while the sum is 64.

The spelling of 57436538887 in words is "fifty-seven billion, four hundred thirty-six million, five hundred thirty-eight thousand, eight hundred eighty-seven".