157915363117 has 2 divisors, whose sum is σ = 157915363118. Its totient is φ = 157915363116.

The previous prime is 157915363103. The next prime is 157915363129. The reversal of 157915363117 is 711363519751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85892369476 + 72022993641 = 293074^2 + 268371^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157915363117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157915363217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78957681558 + 78957681559.

It is an arithmetic number, because the mean of its divisors is an integer number (78957681559).

Almost surely, 2^157915363117 is an apocalyptic number.

It is an amenable number.

157915363117 is a deficient number, since it is larger than the sum of its proper divisors (1).

157915363117 is an equidigital number, since it uses as much as digits as its factorization.

157915363117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 595350, while the sum is 49.

The spelling of 157915363117 in words is "one hundred fifty-seven billion, nine hundred fifteen million, three hundred sixty-three thousand, one hundred seventeen".