13521129986 has 16 divisors (see below), whose sum is σ = 24962086464. Its totient is φ = 5349018384.

The previous prime is 13521129977. The next prime is 13521130003. The reversal of 13521129986 is 68992112531.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13521129986.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37145780 + ... + 37146143.

It is an arithmetic number, because the mean of its divisors is an integer number (1560130404).

Almost surely, 2^13521129986 is an apocalyptic number.

13521129986 is a deficient number, since it is larger than the sum of its proper divisors (11440956478).

13521129986 is a wasteful number, since it uses less digits than its factorization.

13521129986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74291945.

The product of its digits is 233280, while the sum is 47.

The spelling of 13521129986 in words is "thirteen billion, five hundred twenty-one million, one hundred twenty-nine thousand, nine hundred eighty-six".