572540485491 has 24 divisors (see below), whose sum is σ = 891467740800. Its totient is φ = 351996656256.

The previous prime is 572540485397. The next prime is 572540485493. The reversal of 572540485491 is 194584045275.

572540485491 is a `hidden beast` number, since 5 + 7 + 2 + 54 + 0 + 48 + 549 + 1 = 666.

It is not a de Polignac number, because 572540485491 - 2⁹ = 572540484979 is a prime.

It is a super-2 number, since 2×572540485491² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (572540485493) 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, 2209731 + ... + 2455196.

It is an arithmetic number, because the mean of its divisors is an integer number (37144489200).

Almost surely, 2^572540485491 is an apocalyptic number.

572540485491 is a deficient number, since it is larger than the sum of its proper divisors (318927255309).

572540485491 is a wasteful number, since it uses less digits than its factorization.

572540485491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4665995 (or 4665992 counting only the distinct ones).

The product of its (nonzero) digits is 8064000, while the sum is 54.

The spelling of 572540485491 in words is "five hundred seventy-two billion, five hundred forty million, four hundred eighty-five thousand, four hundred ninety-one".