13912836768 has 144 divisors (see below), whose sum is σ = 40998976200. Its totient is φ = 4470036480.

The previous prime is 13912836731. The next prime is 13912836823. The reversal of 13912836768 is 86763821931.

It can be written as a sum of positive squares in 4 ways, for example, as 13602090384 + 310746384 = 116628^2 + 17628^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6855978 + ... + 6858006.

Almost surely, 2^13912836768 is an apocalyptic number.

13912836768 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13912836768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20499488100).

13912836768 is an abundant number, since it is smaller than the sum of its proper divisors (27086139432).

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

13912836768 is a wasteful number, since it uses less digits than its factorization.

13912836768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2895 (or 2884 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The spelling of 13912836768 in words is "thirteen billion, nine hundred twelve million, eight hundred thirty-six thousand, seven hundred sixty-eight".