13872104631 has 80 divisors (see below), whose sum is σ = 25927469568. Its totient is φ = 7180747200.

The previous prime is 13872104627. The next prime is 13872104641. The reversal of 13872104631 is 13640127831.

It is a happy number.

13872104631 is a `hidden beast` number, since 1 + 3 + 8 + 7 + 2 + 10 + 4 + 631 = 666.

It is not a de Polignac number, because 13872104631 - 2² = 13872104627 is a prime.

It is a super-2 number, since 2×13872104631² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13872104641) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1823646 + ... + 1831236.

Almost surely, 2^13872104631 is an apocalyptic number.

13872104631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13872104631 is a deficient number, since it is larger than the sum of its proper divisors (12055364937).

13872104631 is a wasteful number, since it uses less digits than its factorization.

13872104631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7914 (or 7905 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 13872104631 in words is "thirteen billion, eight hundred seventy-two million, one hundred four thousand, six hundred thirty-one".