13385512724421 has 12 divisors (see below), whose sum is σ = 18190446400448. Its totient is φ = 8755303914864.

The previous prime is 13385512724407. The next prime is 13385512724453. The reversal of 13385512724421 is 12442721558331.

It is not a de Polignac number, because 13385512724421 - 2¹⁴ = 13385512708037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13385512724491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 794195485 + ... + 794212338.

Almost surely, 2^{13385512724421} is an apocalyptic number.

It is an amenable number.

13385512724421 is a deficient number, since it is larger than the sum of its proper divisors (4804933676027).

13385512724421 is an equidigital number, since it uses as much as digits as its factorization.

13385512724421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1588407932 (or 1588407879 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 48.

The spelling of 13385512724421 in words is "thirteen trillion, three hundred eighty-five billion, five hundred twelve million, seven hundred twenty-four thousand, four hundred twenty-one".