718622234137 has 2 divisors, whose sum is σ = 718622234138. Its totient is φ = 718622234136.

The previous prime is 718622234117. The next prime is 718622234167. The reversal of 718622234137 is 731432226817.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 423587498896 + 295034735241 = 650836^2 + 543171^2 .

It is a cyclic number.

It is not a de Polignac number, because 718622234137 - 2²³ = 718613845529 is a prime.

It is not a weakly prime, because it can be changed into another prime (718622234117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 359311117068 + 359311117069.

It is an arithmetic number, because the mean of its divisors is an integer number (359311117069).

Almost surely, 2^718622234137 is an apocalyptic number.

It is an amenable number.

718622234137 is a deficient number, since it is larger than the sum of its proper divisors (1).

718622234137 is an equidigital number, since it uses as much as digits as its factorization.

718622234137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 677376, while the sum is 46.

The spelling of 718622234137 in words is "seven hundred eighteen billion, six hundred twenty-two million, two hundred thirty-four thousand, one hundred thirty-seven".