57546943491 has 16 divisors (see below), whose sum is σ = 82971316224. Its totient is φ = 35339631744.

The previous prime is 57546943477. The next prime is 57546943499. The reversal of 57546943491 is 19434964575.

It is not a de Polignac number, because 57546943491 - 2⁵ = 57546943459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57546943499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12001555 + ... + 12006348.

It is an arithmetic number, because the mean of its divisors is an integer number (5185707264).

Almost surely, 2^57546943491 is an apocalyptic number.

57546943491 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

57546943491 is a deficient number, since it is larger than the sum of its proper divisors (25424372733).

57546943491 is a wasteful number, since it uses less digits than its factorization.

57546943491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24007970.

The product of its digits is 16329600, while the sum is 57.

The spelling of 57546943491 in words is "fifty-seven billion, five hundred forty-six million, nine hundred forty-three thousand, four hundred ninety-one".