15700157009 has 2 divisors, whose sum is σ = 15700157010. Its totient is φ = 15700157008.

The previous prime is 15700156993. The next prime is 15700157017. The reversal of 15700157009 is 90075100751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15682051984 + 18105025 = 125228^2 + 4255^2 .

It is a cyclic number.

It is not a de Polignac number, because 15700157009 - 2⁴ = 15700156993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15700157009.

It is not a weakly prime, because it can be changed into another prime (15700157309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7850078504 + 7850078505.

It is an arithmetic number, because the mean of its divisors is an integer number (7850078505).

Almost surely, 2^15700157009 is an apocalyptic number.

It is an amenable number.

15700157009 is a deficient number, since it is larger than the sum of its proper divisors (1).

15700157009 is an equidigital number, since it uses as much as digits as its factorization.

15700157009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11025, while the sum is 35.

The spelling of 15700157009 in words is "fifteen billion, seven hundred million, one hundred fifty-seven thousand, nine".