3931632432431 has 4 divisors (see below), whose sum is σ = 4289053562664. Its totient is φ = 3574211302200.

The previous prime is 3931632432389. The next prime is 3931632432439. The reversal of 3931632432431 is 1342342361393.

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

It is not a de Polignac number, because 3931632432431 - 2³⁰ = 3930558690607 is a prime.

It is a super-2 number, since 2×3931632432431² (a number of 26 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 (3931632432439) 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, 178710565100 + ... + 178710565121.

It is an arithmetic number, because the mean of its divisors is an integer number (1072263390666).

Almost surely, 2^{3931632432431} is an apocalyptic number.

3931632432431 is a deficient number, since it is larger than the sum of its proper divisors (357421130233).

3931632432431 is a wasteful number, since it uses less digits than its factorization.

3931632432431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357421130232.

The product of its digits is 839808, while the sum is 44.

The spelling of 3931632432431 in words is "three trillion, nine hundred thirty-one billion, six hundred thirty-two million, four hundred thirty-two thousand, four hundred thirty-one".