2568653872 has 20 divisors (see below), whose sum is σ = 4977661320. Its totient is φ = 1284096128.

The previous prime is 2568653863. The next prime is 2568653873. The reversal of 2568653872 is 2783568652.

It is not an unprimeable number, because it can be changed into a prime (2568653873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109803 + ... + 131125.

It is an arithmetic number, because the mean of its divisors is an integer number (248883066).

Almost surely, 2^2568653872 is an apocalyptic number.

It is an amenable number.

2568653872 is a deficient number, since it is larger than the sum of its proper divisors (2409007448).

2568653872 is a wasteful number, since it uses less digits than its factorization.

2568653872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28860 (or 28854 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 52.

The square root of 2568653872 is about 50681.8889939986. Note that the first 3 decimals coincide. The cubic root of 2568653872 is about 1369.5204729486.

The spelling of 2568653872 in words is "two billion, five hundred sixty-eight million, six hundred fifty-three thousand, eight hundred seventy-two".