2718118957 has 2 divisors, whose sum is σ = 2718118958. Its totient is φ = 2718118956.

The previous prime is 2718118937. The next prime is 2718118979. The reversal of 2718118957 is 7598118172.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1620787081 + 1097331876 = 40259^2 + 33126^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2718118957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2718118957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2718118937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1359059478 + 1359059479.

It is an arithmetic number, because the mean of its divisors is an integer number (1359059479).

Almost surely, 2^2718118957 is an apocalyptic number.

It is an amenable number.

2718118957 is a deficient number, since it is larger than the sum of its proper divisors (1).

2718118957 is an equidigital number, since it uses as much as digits as its factorization.

2718118957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 282240, while the sum is 49.

The square root of 2718118957 is about 52135.5824461567. The cubic root of 2718118957 is about 1395.5845508643.

The spelling of 2718118957 in words is "two billion, seven hundred eighteen million, one hundred eighteen thousand, nine hundred fifty-seven".