538574636831 has 12 divisors (see below), whose sum is σ = 683460207720. Its totient is φ = 419668547760.

The previous prime is 538574636819. The next prime is 538574636837. The reversal of 538574636831 is 138636475835.

It is not a de Polignac number, because 538574636831 - 2⁶ = 538574636767 is a prime.

It is a super-2 number, since 2×538574636831² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538574636837) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 499604876 + ... + 499605953.

It is an arithmetic number, because the mean of its divisors is an integer number (56955017310).

Almost surely, 2^538574636831 is an apocalyptic number.

538574636831 is a deficient number, since it is larger than the sum of its proper divisors (144885570889).

538574636831 is a wasteful number, since it uses less digits than its factorization.

538574636831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999210854 (or 999210847 counting only the distinct ones).

The product of its digits is 43545600, while the sum is 59.

The spelling of 538574636831 in words is "five hundred thirty-eight billion, five hundred seventy-four million, six hundred thirty-six thousand, eight hundred thirty-one".