2872717668557 has 16 divisors (see below), whose sum is σ = 3169867219200. Its totient is φ = 2581581488640.

The previous prime is 2872717668529. The next prime is 2872717668599. The reversal of 2872717668557 is 7558667172782.

It is a de Polignac number, because none of the positive numbers 2^k-2872717668557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2872717668157) 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, 3633653 + ... + 4353029.

It is an arithmetic number, because the mean of its divisors is an integer number (198116701200).

Almost surely, 2^{2872717668557} is an apocalyptic number.

It is an amenable number.

2872717668557 is a deficient number, since it is larger than the sum of its proper divisors (297149550643).

2872717668557 is a wasteful number, since it uses less digits than its factorization.

2872717668557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723556.

The product of its digits is 553190400, while the sum is 71.

The spelling of 2872717668557 in words is "two trillion, eight hundred seventy-two billion, seven hundred seventeen million, six hundred sixty-eight thousand, five hundred fifty-seven".