715137721660057 has 2 divisors, whose sum is σ = 715137721660058. Its totient is φ = 715137721660056.

The previous prime is 715137721660013. The next prime is 715137721660073. The reversal of 715137721660057 is 750066127731517.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 396240236654656 + 318897485005401 = 19905784^2 + 17857701^2 .

It is a cyclic number.

It is not a de Polignac number, because 715137721660057 - 2⁷ = 715137721659929 is a prime.

It is a super-2 number, since 2×715137721660057² (a number of 31 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 715137721659983 and 715137721660010.

It is not a weakly prime, because it can be changed into another prime (715137721660007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 357568860830028 + 357568860830029.

It is an arithmetic number, because the mean of its divisors is an integer number (357568860830029).

Almost surely, 2^{715137721660057} is an apocalyptic number.

It is an amenable number.

715137721660057 is a deficient number, since it is larger than the sum of its proper divisors (1).

715137721660057 is an equidigital number, since it uses as much as digits as its factorization.

715137721660057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12965400, while the sum is 58.

The spelling of 715137721660057 in words is "seven hundred fifteen trillion, one hundred thirty-seven billion, seven hundred twenty-one million, six hundred sixty thousand, fifty-seven".