2577868652 has 12 divisors (see below), whose sum is σ = 4555936896. Its totient is φ = 1276172400.

The previous prime is 2577868621. The next prime is 2577868669. The reversal of 2577868652 is 2568687752.

It is a happy number.

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, 3190028 + ... + 3190835.

It is an arithmetic number, because the mean of its divisors is an integer number (379661408).

Almost surely, 2^2577868652 is an apocalyptic number.

It is an amenable number.

2577868652 is a deficient number, since it is larger than the sum of its proper divisors (1978068244).

2577868652 is a wasteful number, since it uses less digits than its factorization.

2577868652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6380968 (or 6380966 counting only the distinct ones).

The product of its digits is 11289600, while the sum is 56.

The square root of 2577868652 is about 50772.7156256192. The cubic root of 2577868652 is about 1371.1561895168.

Subtracting from 2577868652 its reverse (2568687752), we obtain a square (9180900 = 3030²).

The spelling of 2577868652 in words is "two billion, five hundred seventy-seven million, eight hundred sixty-eight thousand, six hundred fifty-two".