13788043507 has 24 divisors (see below), whose sum is σ = 16577387520. Its totient is φ = 11422691280.

The previous prime is 13788043499. The next prime is 13788043537. The reversal of 13788043507 is 70534088731.

It is not a de Polignac number, because 13788043507 - 2³ = 13788043499 is a prime.

It is a super-2 number, since 2×13788043507² (a number of 21 digits) contains 22 as substring.

It is the 117423-rd Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13788043537) by changing a digit.

It is a nontrivial repunit in base 117422.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1299538 + ... + 1310104.

It is an arithmetic number, because the mean of its divisors is an integer number (690724480).

Almost surely, 2^13788043507 is an apocalyptic number.

13788043507 is a deficient number, since it is larger than the sum of its proper divisors (2789344013).

13788043507 is a wasteful number, since it uses less digits than its factorization.

13788043507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11471 (or 11464 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 46.

The spelling of 13788043507 in words is "thirteen billion, seven hundred eighty-eight million, forty-three thousand, five hundred seven".