13879508920812 has 48 divisors (see below), whose sum is σ = 36015121283680. Its totient is φ = 4622490353664.

The previous prime is 13879508920811. The next prime is 13879508920841. The reversal of 13879508920812 is 21802980597831.

13879508920812 is a `hidden beast` number, since 1 + 38 + 7 + 9 + 508 + 92 + 0 + 8 + 1 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 13879508920812.

It is not an unprimeable number, because it can be changed into a prime (13879508920811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55605733 + ... + 55854780.

Almost surely, 2^{13879508920812} is an apocalyptic number.

13879508920812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13879508920812 is an abundant number, since it is smaller than the sum of its proper divisors (22135612362868).

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

13879508920812 is a wasteful number, since it uses less digits than its factorization.

13879508920812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111461679 (or 111461671 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 63.

The spelling of 13879508920812 in words is "thirteen trillion, eight hundred seventy-nine billion, five hundred eight million, nine hundred twenty thousand, eight hundred twelve".