13137973663 has 2 divisors, whose sum is σ = 13137973664. Its totient is φ = 13137973662.

The previous prime is 13137973603. The next prime is 13137973669. The reversal of 13137973663 is 36637973131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13137973663 - 2⁹ = 13137973151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13137973669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6568986831 + 6568986832.

It is an arithmetic number, because the mean of its divisors is an integer number (6568986832).

Almost surely, 2^13137973663 is an apocalyptic number.

13137973663 is a deficient number, since it is larger than the sum of its proper divisors (1).

13137973663 is an equidigital number, since it uses as much as digits as its factorization.

13137973663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1285956, while the sum is 49.

It can be divided in two parts, 1313 and 7973663, that added together give a square (7974976 = 2824²).

The spelling of 13137973663 in words is "thirteen billion, one hundred thirty-seven million, nine hundred seventy-three thousand, six hundred sixty-three".