7937085257 has 2 divisors, whose sum is σ = 7937085258. Its totient is φ = 7937085256.

The previous prime is 7937085199. The next prime is 7937085293. The reversal of 7937085257 is 7525807397.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7593205321 + 343879936 = 87139^2 + 18544^2 .

It is a cyclic number.

It is not a de Polignac number, because 7937085257 - 2⁶ = 7937085193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7937085199 and 7937085208.

It is not a weakly prime, because it can be changed into another prime (7937085757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3968542628 + 3968542629.

It is an arithmetic number, because the mean of its divisors is an integer number (3968542629).

Almost surely, 2^7937085257 is an apocalyptic number.

It is an amenable number.

7937085257 is a deficient number, since it is larger than the sum of its proper divisors (1).

7937085257 is an equidigital number, since it uses as much as digits as its factorization.

7937085257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3704400, while the sum is 53.

The square root of 7937085257 is about 89090.3207817774. The cubic root of 7937085257 is about 1994.7433004095.

The spelling of 7937085257 in words is "seven billion, nine hundred thirty-seven million, eighty-five thousand, two hundred fifty-seven".