13608404520 has 32 divisors (see below), whose sum is σ = 40825213920. Its totient is φ = 3628907840.

The previous prime is 13608404473. The next prime is 13608404527. The reversal of 13608404520 is 2540480631.

13608404520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (13608404527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56701566 + ... + 56701805.

It is an arithmetic number, because the mean of its divisors is an integer number (1275787935).

Almost surely, 2^13608404520 is an apocalyptic number.

13608404520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13608404520 is an abundant number, since it is smaller than the sum of its proper divisors (27216809400).

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

13608404520 is a wasteful number, since it uses less digits than its factorization.

13608404520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113403385 (or 113403381 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The spelling of 13608404520 in words is "thirteen billion, six hundred eight million, four hundred four thousand, five hundred twenty".