2461718557 has 2 divisors, whose sum is σ = 2461718558. Its totient is φ = 2461718556.

The previous prime is 2461718513. The next prime is 2461718561. The reversal of 2461718557 is 7558171642.

2461718557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2222273881 + 239444676 = 47141^2 + 15474^2 .

It is a cyclic number.

It is not a de Polignac number, because 2461718557 - 2⁷ = 2461718429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2461788557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1230859278 + 1230859279.

It is an arithmetic number, because the mean of its divisors is an integer number (1230859279).

Almost surely, 2^2461718557 is an apocalyptic number.

It is an amenable number.

2461718557 is a deficient number, since it is larger than the sum of its proper divisors (1).

2461718557 is an equidigital number, since it uses as much as digits as its factorization.

2461718557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 470400, while the sum is 46.

The square root of 2461718557 is about 49615.7087725249. The cubic root of 2461718557 is about 1350.2456904457.

The spelling of 2461718557 in words is "two billion, four hundred sixty-one million, seven hundred eighteen thousand, five hundred fifty-seven".