157209528713 has 2 divisors, whose sum is σ = 157209528714. Its totient is φ = 157209528712.

The previous prime is 157209528673. The next prime is 157209528743. The reversal of 157209528713 is 317825902751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 155589224704 + 1620304009 = 394448^2 + 40253^2 .

It is a cyclic number.

It is not a de Polignac number, because 157209528713 - 2⁶ = 157209528649 is a prime.

It is not a weakly prime, because it can be changed into another prime (157209528743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78604764356 + 78604764357.

It is an arithmetic number, because the mean of its divisors is an integer number (78604764357).

Almost surely, 2^157209528713 is an apocalyptic number.

It is an amenable number.

157209528713 is a deficient number, since it is larger than the sum of its proper divisors (1).

157209528713 is an equidigital number, since it uses as much as digits as its factorization.

157209528713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1058400, while the sum is 50.

The spelling of 157209528713 in words is "one hundred fifty-seven billion, two hundred nine million, five hundred twenty-eight thousand, seven hundred thirteen".