13531926492 has 72 divisors (see below), whose sum is σ = 41391788256. Its totient is φ = 3638836224.

The previous prime is 13531926479. The next prime is 13531926493. The reversal of 13531926492 is 29462913531.

13531926492 is a `hidden beast` number, since 1 + 3 + 531 + 9 + 26 + 4 + 92 = 666.

It is a super-2 number, since 2×13531926492² (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 (13531926493) 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, 1575073 + ... + 1583640.

It is an arithmetic number, because the mean of its divisors is an integer number (574885948).

Almost surely, 2^13531926492 is an apocalyptic number.

13531926492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13531926492 is an abundant number, since it is smaller than the sum of its proper divisors (27859861764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13531926492 is a wasteful number, since it uses less digits than its factorization.

13531926492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3158747 (or 3158742 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The spelling of 13531926492 in words is "thirteen billion, five hundred thirty-one million, nine hundred twenty-six thousand, four hundred ninety-two".