13807431289 has 2 divisors, whose sum is σ = 13807431290. Its totient is φ = 13807431288.

The previous prime is 13807431223. The next prime is 13807431307. The reversal of 13807431289 is 98213470831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11578836025 + 2228595264 = 107605^2 + 47208^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13807431289 is a prime.

It is not a weakly prime, because it can be changed into another prime (13807431389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6903715644 + 6903715645.

It is an arithmetic number, because the mean of its divisors is an integer number (6903715645).

Almost surely, 2^13807431289 is an apocalyptic number.

It is an amenable number.

13807431289 is a deficient number, since it is larger than the sum of its proper divisors (1).

13807431289 is an equidigital number, since it uses as much as digits as its factorization.

13807431289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 46.

It can be divided in two parts, 13807 and 431289, that added together give a triangular number (445096 = T₉₄₃).

The spelling of 13807431289 in words is "thirteen billion, eight hundred seven million, four hundred thirty-one thousand, two hundred eighty-nine".