8257768804 has 12 divisors (see below), whose sum is σ = 14452094524. Its totient is φ = 4128598944.

The previous prime is 8257768777. The next prime is 8257768829. The reversal of 8257768804 is 4088677528.

It can be written as a sum of positive squares in 2 ways, for example, as 1193702500 + 7064066304 = 34550^2 + 84048^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2134 + ... + 128530.

Almost surely, 2^8257768804 is an apocalyptic number.

It is an amenable number.

8257768804 is a deficient number, since it is larger than the sum of its proper divisors (6194325720).

8257768804 is a wasteful number, since it uses less digits than its factorization.

8257768804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142734 (or 142732 counting only the distinct ones).

The product of its (nonzero) digits is 6021120, while the sum is 55.

The square root of 8257768804 is about 90872.2664183083. The cubic root of 8257768804 is about 2021.2540659069.

The spelling of 8257768804 in words is "eight billion, two hundred fifty-seven million, seven hundred sixty-eight thousand, eight hundred four".