2563345268 has 24 divisors (see below), whose sum is σ = 4918267200. Its totient is φ = 1159297920.

The previous prime is 2563345243. The next prime is 2563345273. The reversal of 2563345268 is 8625433652.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137621 + ... + 155132.

It is an arithmetic number, because the mean of its divisors is an integer number (204927800).

Almost surely, 2^2563345268 is an apocalyptic number.

It is an amenable number.

2563345268 is a deficient number, since it is larger than the sum of its proper divisors (2354921932).

2563345268 is a wasteful number, since it uses less digits than its factorization.

2563345268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292967 (or 292965 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 44.

The square root of 2563345268 is about 50629.4901021134. The cubic root of 2563345268 is about 1368.5763654614.

The spelling of 2563345268 in words is "two billion, five hundred sixty-three million, three hundred forty-five thousand, two hundred sixty-eight".