531112642775 has 96 divisors (see below), whose sum is σ = 786289340928. Its totient is φ = 350802316800.

The previous prime is 531112642679. The next prime is 531112642799. The reversal of 531112642775 is 577246211135.

It is not a de Polignac number, because 531112642775 - 2¹⁴ = 531112626391 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 57806732 + ... + 57815918.

It is an arithmetic number, because the mean of its divisors is an integer number (8190513968).

Almost surely, 2^531112642775 is an apocalyptic number.

531112642775 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

531112642775 is a deficient number, since it is larger than the sum of its proper divisors (255176698153).

531112642775 is a wasteful number, since it uses less digits than its factorization.

531112642775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9481 (or 9476 counting only the distinct ones).

The product of its digits is 352800, while the sum is 44.

The spelling of 531112642775 in words is "five hundred thirty-one billion, one hundred twelve million, six hundred forty-two thousand, seven hundred seventy-five".