13011915512 has 8 divisors (see below), whose sum is σ = 24397341600. Its totient is φ = 6505957752.

The previous prime is 13011915493. The next prime is 13011915563. The reversal of 13011915512 is 21551911031.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 813244712 + ... + 813244727.

It is an arithmetic number, because the mean of its divisors is an integer number (3049667700).

Almost surely, 2^13011915512 is an apocalyptic number.

It is an amenable number.

13011915512 is a deficient number, since it is larger than the sum of its proper divisors (11385426088).

13011915512 is a wasteful number, since it uses less digits than its factorization.

13011915512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1626489445 (or 1626489441 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 29.

The spelling of 13011915512 in words is "thirteen billion, eleven million, nine hundred fifteen thousand, five hundred twelve".