2561043610 has 32 divisors (see below), whose sum is σ = 4766003712. Its totient is φ = 989826240.

The previous prime is 2561043599. The next prime is 2561043623. The reversal of 2561043610 is 163401652.

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, 203769 + ... + 215971.

It is an arithmetic number, because the mean of its divisors is an integer number (148937616).

Almost surely, 2^2561043610 is an apocalyptic number.

2561043610 is a deficient number, since it is larger than the sum of its proper divisors (2204960102).

2561043610 is a wasteful number, since it uses less digits than its factorization.

2561043610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12918.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 2561043610 is about 50606.7545886910. The cubic root of 2561043610 is about 1368.1666225035.

The spelling of 2561043610 in words is "two billion, five hundred sixty-one million, forty-three thousand, six hundred ten".