13261740512 has 24 divisors (see below), whose sum is σ = 26111849400. Its totient is φ = 6630159744.

The previous prime is 13261740493. The next prime is 13261740539. The reversal of 13261740512 is 21504716231.

It is a super-2 number, since 2×13261740512² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 411314 + ... + 442382.

It is an arithmetic number, because the mean of its divisors is an integer number (1087993725).

Almost surely, 2^13261740512 is an apocalyptic number.

It is an amenable number.

13261740512 is a deficient number, since it is larger than the sum of its proper divisors (12850108888).

13261740512 is a wasteful number, since it uses less digits than its factorization.

13261740512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44418 (or 44410 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The spelling of 13261740512 in words is "thirteen billion, two hundred sixty-one million, seven hundred forty thousand, five hundred twelve".