2680909556 has 24 divisors (see below), whose sum is σ = 5116446720. Its totient is φ = 1221678432.

The previous prime is 2680909507. The next prime is 2680909573. The reversal of 2680909556 is 6559090862.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

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, 322196 + ... + 330411.

It is an arithmetic number, because the mean of its divisors is an integer number (213185280).

Almost surely, 2^2680909556 is an apocalyptic number.

2680909556 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2680909556 is a deficient number, since it is larger than the sum of its proper divisors (2435537164).

2680909556 is a wasteful number, since it uses less digits than its factorization.

2680909556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652703 (or 652701 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 50.

The square root of 2680909556 is about 51777.5004804210. The cubic root of 2680909556 is about 1389.1870331973.

The spelling of 2680909556 in words is "two billion, six hundred eighty million, nine hundred nine thousand, five hundred fifty-six".