7813710868 has 6 divisors (see below), whose sum is σ = 13673994026. Its totient is φ = 3906855432.

The previous prime is 7813710809. The next prime is 7813710869. The reversal of 7813710868 is 8680173187.

It can be written as a sum of positive squares in only one way, i.e., 4940965264 + 2872745604 = 70292^2 + 53598^2 .

It is a super-2 number, since 2×7813710868² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7813710869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 976713855 + ... + 976713862.

Almost surely, 2^7813710868 is an apocalyptic number.

It is an amenable number.

7813710868 is a deficient number, since it is larger than the sum of its proper divisors (5860283158).

7813710868 is a wasteful number, since it uses less digits than its factorization.

7813710868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1953427721 (or 1953427719 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 49.

The square root of 7813710868 is about 88395.1970867196. The cubic root of 7813710868 is about 1984.3538234318.

The spelling of 7813710868 in words is "seven billion, eight hundred thirteen million, seven hundred ten thousand, eight hundred sixty-eight".