2504640664 has 16 divisors (see below), whose sum is σ = 4720042800. Its totient is φ = 1245962592.

The previous prime is 2504640653. The next prime is 2504640679. The reversal of 2504640664 is 4660464052.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 793044 + ... + 796195.

It is an arithmetic number, because the mean of its divisors is an integer number (295002675).

Almost surely, 2^2504640664 is an apocalyptic number.

It is an amenable number.

2504640664 is a deficient number, since it is larger than the sum of its proper divisors (2215402136).

2504640664 is a wasteful number, since it uses less digits than its factorization.

2504640664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1589442 (or 1589438 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 37.

The square root of 2504640664 is about 50046.3851242025. The cubic root of 2504640664 is about 1358.0480692220.

The spelling of 2504640664 in words is "two billion, five hundred four million, six hundred forty thousand, six hundred sixty-four".