13011633768 has 32 divisors (see below), whose sum is σ = 37176096960. Its totient is φ = 3717609600.

The previous prime is 13011633727. The next prime is 13011633769. The reversal of 13011633768 is 86733611031.

It is a super-2 number, since 2×13011633768² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13011633769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38724933 + ... + 38725268.

It is an arithmetic number, because the mean of its divisors is an integer number (1161753030).

Almost surely, 2^13011633768 is an apocalyptic number.

It is an amenable number.

13011633768 is an abundant number, since it is smaller than the sum of its proper divisors (24164463192).

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

13011633768 is a wasteful number, since it uses less digits than its factorization.

13011633768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77450217 (or 77450213 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The spelling of 13011633768 in words is "thirteen billion, eleven million, six hundred thirty-three thousand, seven hundred sixty-eight".