7316205857 has 2 divisors, whose sum is σ = 7316205858. Its totient is φ = 7316205856.

The previous prime is 7316205823. The next prime is 7316205859. The reversal of 7316205857 is 7585026137.

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., 7047770401 + 268435456 = 83951^2 + 16384^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7316205857 is a prime.

It is a super-2 number, since 2×7316205857² (a number of 21 digits) contains 22 as substring.

Together with 7316205859, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7316205859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3658102928 + 3658102929.

It is an arithmetic number, because the mean of its divisors is an integer number (3658102929).

Almost surely, 2^7316205857 is an apocalyptic number.

It is an amenable number.

7316205857 is a deficient number, since it is larger than the sum of its proper divisors (1).

7316205857 is an equidigital number, since it uses as much as digits as its factorization.

7316205857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 352800, while the sum is 44.

The square root of 7316205857 is about 85534.8224818407. The cubic root of 7316205857 is about 1941.3118502504.

The spelling of 7316205857 in words is "seven billion, three hundred sixteen million, two hundred five thousand, eight hundred fifty-seven".