13508075844 has 36 divisors (see below), whose sum is σ = 34192447744. Its totient is φ = 4496489712.

The previous prime is 13508075831. The next prime is 13508075929. The reversal of 13508075844 is 44857080531.

13508075844 is a `hidden beast` number, since 13 + 50 + 8 + 0 + 7 + 584 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×13508075844² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13508075844.

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 11 ways as a sum of consecutive naturals, for example, 231892 + ... + 284235.

Almost surely, 2^13508075844 is an apocalyptic number.

It is an amenable number.

13508075844 is an abundant number, since it is smaller than the sum of its proper divisors (20684371900).

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

13508075844 is a wasteful number, since it uses less digits than its factorization.

13508075844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516864 (or 516859 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The spelling of 13508075844 in words is "thirteen billion, five hundred eight million, seventy-five thousand, eight hundred forty-four".