15807152117 has 2 divisors, whose sum is σ = 15807152118. Its totient is φ = 15807152116.

The previous prime is 15807152083. The next prime is 15807152131. The reversal of 15807152117 is 71125170851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15324954436 + 482197681 = 123794^2 + 21959^2 .

It is a cyclic number.

It is not a de Polignac number, because 15807152117 - 2¹⁰ = 15807151093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15807151117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7903576058 + 7903576059.

It is an arithmetic number, because the mean of its divisors is an integer number (7903576059).

Almost surely, 2^15807152117 is an apocalyptic number.

It is an amenable number.

15807152117 is a deficient number, since it is larger than the sum of its proper divisors (1).

15807152117 is an equidigital number, since it uses as much as digits as its factorization.

15807152117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19600, while the sum is 38.

The spelling of 15807152117 in words is "fifteen billion, eight hundred seven million, one hundred fifty-two thousand, one hundred seventeen".