2085694890 has 16 divisors (see below), whose sum is σ = 5005667808. Its totient is φ = 556185296.

The previous prime is 2085694829. The next prime is 2085694903. The reversal of 2085694890 is 984965802.

It is a super-2 number, since 2×2085694890² = 8700246348344224200, which contains 22 as substring.

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, 34761552 + ... + 34761611.

It is an arithmetic number, because the mean of its divisors is an integer number (312854238).

Almost surely, 2^2085694890 is an apocalyptic number.

2085694890 is an abundant number, since it is smaller than the sum of its proper divisors (2919972918).

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

2085694890 is a wasteful number, since it uses less digits than its factorization.

2085694890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69523173.

The product of its (nonzero) digits is 1244160, while the sum is 51.

The square root of 2085694890 is about 45669.4086889682. The cubic root of 2085694890 is about 1277.6647872671.

The spelling of 2085694890 in words is "two billion, eighty-five million, six hundred ninety-four thousand, eight hundred ninety".