15317374291 has 2 divisors, whose sum is σ = 15317374292. Its totient is φ = 15317374290.

The previous prime is 15317374279. The next prime is 15317374313. The reversal of 15317374291 is 19247371351.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15317374291 - 2²¹ = 15315277139 is a prime.

It is not a weakly prime, because it can be changed into another prime (15317374231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7658687145 + 7658687146.

It is an arithmetic number, because the mean of its divisors is an integer number (7658687146).

Almost surely, 2^15317374291 is an apocalyptic number.

15317374291 is a deficient number, since it is larger than the sum of its proper divisors (1).

15317374291 is an equidigital number, since it uses as much as digits as its factorization.

15317374291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 158760, while the sum is 43.

The spelling of 15317374291 in words is "fifteen billion, three hundred seventeen million, three hundred seventy-four thousand, two hundred ninety-one".