718608418057 has 2 divisors, whose sum is σ = 718608418058. Its totient is φ = 718608418056.

The previous prime is 718608418043. The next prime is 718608418081. The reversal of 718608418057 is 750814806817.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 422988941376 + 295619476681 = 650376^2 + 543709^2 .

It is a cyclic number.

It is not a de Polignac number, because 718608418057 - 2²³ = 718600029449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 718608417989 and 718608418007.

It is not a weakly prime, because it can be changed into another prime (718608410057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 359304209028 + 359304209029.

It is an arithmetic number, because the mean of its divisors is an integer number (359304209029).

Almost surely, 2^718608418057 is an apocalyptic number.

It is an amenable number.

718608418057 is a deficient number, since it is larger than the sum of its proper divisors (1).

718608418057 is an equidigital number, since it uses as much as digits as its factorization.

718608418057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3010560, while the sum is 55.

The spelling of 718608418057 in words is "seven hundred eighteen billion, six hundred eight million, four hundred eighteen thousand, fifty-seven".