57904809908643 has 90 divisors (see below), whose sum is σ = 88180528854396. Its totient is φ = 38023151416992.

The previous prime is 57904809908591. The next prime is 57904809908681. The reversal of 57904809908643 is 34680990840975.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

57904809908643 is a `hidden beast` number, since 57 + 9 + 0 + 480 + 9 + 90 + 8 + 6 + 4 + 3 = 666.

It is not a de Polignac number, because 57904809908643 - 2³⁸ = 57629932001699 is a prime.

It is a super-2 number, since 2×57904809908643² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57904809908683) by changing a digit.

It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 77933794930 + ... + 77933795672.

Almost surely, 2^{57904809908643} is an apocalyptic number.

57904809908643 is a deficient number, since it is larger than the sum of its proper divisors (30275718945753).

57904809908643 is an frugal number, since it uses more digits than its factorization.

57904809908643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659 (or 819 counting only the distinct ones).

The product of its (nonzero) digits is 470292480, while the sum is 72.

The spelling of 57904809908643 in words is "fifty-seven trillion, nine hundred four billion, eight hundred nine million, nine hundred eight thousand, six hundred forty-three".