13873767631 has 4 divisors (see below), whose sum is σ = 13887357064. Its totient is φ = 13860178200.

The previous prime is 13873767587. The next prime is 13873767667. The reversal of 13873767631 is 13676737831.

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 13873767631 - 2¹¹ = 13873765583 is a prime.

It is a super-2 number, since 2×13873767631² (a number of 21 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 (13873767731) 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, 6793185 + ... + 6795226.

It is an arithmetic number, because the mean of its divisors is an integer number (3471839266).

Almost surely, 2^13873767631 is an apocalyptic number.

13873767631 is a deficient number, since it is larger than the sum of its proper divisors (13589433).

13873767631 is a wasteful number, since it uses less digits than its factorization.

13873767631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13589432.

The product of its digits is 2667168, while the sum is 52.

The spelling of 13873767631 in words is "thirteen billion, eight hundred seventy-three million, seven hundred sixty-seven thousand, six hundred thirty-one".