13368409524 has 18 divisors (see below), whose sum is σ = 33792368610. Its totient is φ = 4456136496.

The previous prime is 13368409513. The next prime is 13368409547. The reversal of 13368409524 is 42590486331.

13368409524 is a `hidden beast` number, since 13 + 36 + 84 + 0 + 9 + 524 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7033841424 + 6334568100 = 83868^2 + 79590^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 13368409524.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 185672319 + ... + 185672390.

Almost surely, 2^13368409524 is an apocalyptic number.

It is an amenable number.

13368409524 is an abundant number, since it is smaller than the sum of its proper divisors (20423959086).

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

13368409524 is a wasteful number, since it uses less digits than its factorization.

13368409524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371344719 (or 371344714 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 13368409524 in words is "thirteen billion, three hundred sixty-eight million, four hundred nine thousand, five hundred twenty-four".