13129387497 has 16 divisors (see below), whose sum is σ = 19456968960. Its totient is φ = 8750214000.

The previous prime is 13129387457. The next prime is 13129387549. The reversal of 13129387497 is 79478392131.

13129387497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13129387497 - 2¹¹ = 13129385449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13129387417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15472 + ... + 162782.

It is an arithmetic number, because the mean of its divisors is an integer number (1216060560).

Almost surely, 2^13129387497 is an apocalyptic number.

It is an amenable number.

13129387497 is a deficient number, since it is larger than the sum of its proper divisors (6327581463).

13129387497 is a wasteful number, since it uses less digits than its factorization.

13129387497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150621 (or 150615 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 54.

The spelling of 13129387497 in words is "thirteen billion, one hundred twenty-nine million, three hundred eighty-seven thousand, four hundred ninety-seven".