13801408831 has 4 divisors (see below), whose sum is σ = 15773038672. Its totient is φ = 11829778992.

The previous prime is 13801408703. The next prime is 13801408837. The reversal of 13801408831 is 13880410831.

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 13801408831 - 2⁷ = 13801408703 is a prime.

It is a super-2 number, since 2×13801408831² (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 (13801408837) 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, 985814910 + ... + 985814923.

It is an arithmetic number, because the mean of its divisors is an integer number (3943259668).

Almost surely, 2^13801408831 is an apocalyptic number.

13801408831 is a deficient number, since it is larger than the sum of its proper divisors (1971629841).

13801408831 is an equidigital number, since it uses as much as digits as its factorization.

13801408831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1971629840.

The product of its (nonzero) digits is 18432, while the sum is 37.

The spelling of 13801408831 in words is "thirteen billion, eight hundred one million, four hundred eight thousand, eight hundred thirty-one".