2085891844 has 12 divisors (see below), whose sum is σ = 3650850000. Its totient is φ = 1042791848.

The previous prime is 2085891817. The next prime is 2085891869. The reversal of 2085891844 is 4481985802.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4774 + ... + 64765.

It is an arithmetic number, because the mean of its divisors is an integer number (304237500).

Almost surely, 2^2085891844 is an apocalyptic number.

It is an amenable number.

2085891844 is a deficient number, since it is larger than the sum of its proper divisors (1564958156).

2085891844 is a wasteful number, since it uses less digits than its factorization.

2085891844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77042 (or 77040 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 49.

The square root of 2085891844 is about 45671.5649392486. The cubic root of 2085891844 is about 1277.7050030039.

The spelling of 2085891844 in words is "two billion, eighty-five million, eight hundred ninety-one thousand, eight hundred forty-four".