531577113516264 has 32 divisors (see below), whose sum is σ = 1329111581771520. Its totient is φ = 177169864774656.

The previous prime is 531577113516263. The next prime is 531577113516301. The reversal of 531577113516264 is 462615311775135.

It is a super-2 number, since 2×531577113516264² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (531577113516263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1406456952 + ... + 1406834855.

It is an arithmetic number, because the mean of its divisors is an integer number (41534736930360).

Almost surely, 2^{531577113516264} is an apocalyptic number.

It is an amenable number.

531577113516264 is an abundant number, since it is smaller than the sum of its proper divisors (797534468255256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

531577113516264 is a wasteful number, since it uses less digits than its factorization.

531577113516264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2813299689 (or 2813299685 counting only the distinct ones).

The product of its digits is 15876000, while the sum is 57.

The spelling of 531577113516264 in words is "five hundred thirty-one trillion, five hundred seventy-seven billion, one hundred thirteen million, five hundred sixteen thousand, two hundred sixty-four".