2564716650 has 24 divisors (see below), whose sum is σ = 6360497664. Its totient is φ = 683924400.

The previous prime is 2564716621. The next prime is 2564716657. The reversal of 2564716650 is 566174652.

It is not an unprimeable number, because it can be changed into a prime (2564716657) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 8548906 + ... + 8549205.

It is an arithmetic number, because the mean of its divisors is an integer number (265020736).

Almost surely, 2^2564716650 is an apocalyptic number.

2564716650 is an abundant number, since it is smaller than the sum of its proper divisors (3795781014).

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

2564716650 is a wasteful number, since it uses less digits than its factorization.

2564716650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17098126 (or 17098121 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 42.

The square root of 2564716650 is about 50643.0316035681. The cubic root of 2564716650 is about 1368.8203833618.

The spelling of 2564716650 in words is "two billion, five hundred sixty-four million, seven hundred sixteen thousand, six hundred fifty".