2681085890 has 32 divisors (see below), whose sum is σ = 5555654784. Its totient is φ = 912516480.

The previous prime is 2681085859. The next prime is 2681085973. The reversal of 2681085890 is 985801862.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130196 + ... + 149375.

It is an arithmetic number, because the mean of its divisors is an integer number (173614212).

Almost surely, 2^2681085890 is an apocalyptic number.

2681085890 is an abundant number, since it is smaller than the sum of its proper divisors (2874568894).

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

2681085890 is a wasteful number, since it uses less digits than its factorization.

2681085890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279722.

The product of its (nonzero) digits is 276480, while the sum is 47.

The square root of 2681085890 is about 51779.2032576787. The cubic root of 2681085890 is about 1389.2174899672.

The spelling of 2681085890 in words is "two billion, six hundred eighty-one million, eighty-five thousand, eight hundred ninety".