13840053931 has 24 divisors (see below), whose sum is σ = 16121196000. Its totient is φ = 11851593600.

The previous prime is 13840053911. The next prime is 13840053961. The reversal of 13840053931 is 13935004831.

It is not a de Polignac number, because 13840053931 - 2²¹ = 13837956779 is a prime.

It is a super-2 number, since 2×13840053931² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13840053901) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95770 + ... + 191968.

It is an arithmetic number, because the mean of its divisors is an integer number (671716500).

Almost surely, 2^13840053931 is an apocalyptic number.

13840053931 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13840053931 is a deficient number, since it is larger than the sum of its proper divisors (2281142069).

13840053931 is a wasteful number, since it uses less digits than its factorization.

13840053931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96291 (or 96280 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 13840053931 in words is "thirteen billion, eight hundred forty million, fifty-three thousand, nine hundred thirty-one".