2651745668 has 48 divisors (see below), whose sum is σ = 5460544320. Its totient is φ = 1110844800.

The previous prime is 2651745641. The next prime is 2651745709. The reversal of 2651745668 is 8665471562.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 391898 + ... + 398606.

It is an arithmetic number, because the mean of its divisors is an integer number (113761340).

Almost surely, 2^2651745668 is an apocalyptic number.

It is an amenable number.

2651745668 is an abundant number, since it is smaller than the sum of its proper divisors (2808798652).

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

2651745668 is a wasteful number, since it uses less digits than its factorization.

2651745668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7428 (or 7426 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 50.

The square root of 2651745668 is about 51495.1033400264. The cubic root of 2651745668 is about 1384.1312990083.

The spelling of 2651745668 in words is "two billion, six hundred fifty-one million, seven hundred forty-five thousand, six hundred sixty-eight".