15412391317 has 2 divisors, whose sum is σ = 15412391318. Its totient is φ = 15412391316.

The previous prime is 15412391279. The next prime is 15412391321. The reversal of 15412391317 is 71319321451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10341669636 + 5070721681 = 101694^2 + 71209^2 .

It is a cyclic number.

It is not a de Polignac number, because 15412391317 - 2¹¹ = 15412389269 is a prime.

It is a super-2 number, since 2×15412391317² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15412391017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7706195658 + 7706195659.

It is an arithmetic number, because the mean of its divisors is an integer number (7706195659).

Almost surely, 2^15412391317 is an apocalyptic number.

It is an amenable number.

15412391317 is a deficient number, since it is larger than the sum of its proper divisors (1).

15412391317 is an equidigital number, since it uses as much as digits as its factorization.

15412391317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 37.

The spelling of 15412391317 in words is "fifteen billion, four hundred twelve million, three hundred ninety-one thousand, three hundred seventeen".