13091786944 has 56 divisors (see below), whose sum is σ = 27620183520. Its totient is φ = 6143115264.

The previous prime is 13091786867. The next prime is 13091786947. The reversal of 13091786944 is 44968719031.

It is a junction number, because it is equal to n+sod(n) for n = 13091786891 and 13091786900.

It is not an unprimeable number, because it can be changed into a prime (13091786947) 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, 5889 + ... + 161920.

Almost surely, 2^13091786944 is an apocalyptic number.

It is an amenable number.

13091786944 is an abundant number, since it is smaller than the sum of its proper divisors (14528396576).

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

13091786944 is a wasteful number, since it uses less digits than its factorization.

13091786944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167897 (or 167887 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 52.

The spelling of 13091786944 in words is "thirteen billion, ninety-one million, seven hundred eighty-six thousand, nine hundred forty-four".