157715492713 has 2 divisors, whose sum is σ = 157715492714. Its totient is φ = 157715492712.

The previous prime is 157715492687. The next prime is 157715492717. The reversal of 157715492713 is 317294517751.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127329076224 + 30386416489 = 356832^2 + 174317^2 .

It is an emirp because it is prime and its reverse (317294517751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157715492713 - 2³³ = 149125558121 is a prime.

It is a super-3 number, since 3×157715492713³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (157715492717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78857746356 + 78857746357.

It is an arithmetic number, because the mean of its divisors is an integer number (78857746357).

Almost surely, 2^157715492713 is an apocalyptic number.

It is an amenable number.

157715492713 is a deficient number, since it is larger than the sum of its proper divisors (1).

157715492713 is an equidigital number, since it uses as much as digits as its factorization.

157715492713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1852200, while the sum is 52.

The spelling of 157715492713 in words is "one hundred fifty-seven billion, seven hundred fifteen million, four hundred ninety-two thousand, seven hundred thirteen".