2564223676 has 24 divisors (see below), whose sum is σ = 5129552736. Its totient is φ = 1098716160.

The previous prime is 2564223661. The next prime is 2564223719. The reversal of 2564223676 is 6763224652.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202656 + ... + 214936.

It is an arithmetic number, because the mean of its divisors is an integer number (213731364).

Almost surely, 2^2564223676 is an apocalyptic number.

It is an amenable number.

2564223676 is an abundant number, since it is smaller than the sum of its proper divisors (2565329060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2564223676 is a wasteful number, since it uses less digits than its factorization.

2564223676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19749 (or 19747 counting only the distinct ones).

The product of its digits is 725760, while the sum is 43.

The square root of 2564223676 is about 50638.1642242291. The cubic root of 2564223676 is about 1368.7326756743.

The spelling of 2564223676 in words is "two billion, five hundred sixty-four million, two hundred twenty-three thousand, six hundred seventy-six".