7318222957 has 2 divisors, whose sum is σ = 7318222958. Its totient is φ = 7318222956.

The previous prime is 7318222939. The next prime is 7318222999. The reversal of 7318222957 is 7592228137.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6815162916 + 503060041 = 82554^2 + 22429^2 .

It is a cyclic number.

It is not a de Polignac number, because 7318222957 - 2¹¹ = 7318220909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7318222927) 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, 3659111478 + 3659111479.

It is an arithmetic number, because the mean of its divisors is an integer number (3659111479).

Almost surely, 2^7318222957 is an apocalyptic number.

It is an amenable number.

7318222957 is a deficient number, since it is larger than the sum of its proper divisors (1).

7318222957 is an equidigital number, since it uses as much as digits as its factorization.

7318222957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360, while the sum is 46.

The square root of 7318222957 is about 85546.6127733881. The cubic root of 7318222957 is about 1941.4902423659.

The spelling of 7318222957 in words is "seven billion, three hundred eighteen million, two hundred twenty-two thousand, nine hundred fifty-seven".