537531442631 has 4 divisors (see below), whose sum is σ = 550641965664. Its totient is φ = 524420919600.

The previous prime is 537531442561. The next prime is 537531442639. The reversal of 537531442631 is 136244135735.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 537531442631 - 2²⁶ = 537464333767 is a prime.

It is a super-2 number, since 2×537531442631² (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 (537531442639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6555261455 + ... + 6555261536.

It is an arithmetic number, because the mean of its divisors is an integer number (137660491416).

Almost surely, 2^537531442631 is an apocalyptic number.

537531442631 is a deficient number, since it is larger than the sum of its proper divisors (13110523033).

537531442631 is a wasteful number, since it uses less digits than its factorization.

537531442631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13110523032.

The product of its digits is 907200, while the sum is 44.

The spelling of 537531442631 in words is "five hundred thirty-seven billion, five hundred thirty-one million, four hundred forty-two thousand, six hundred thirty-one".