2090964881 has 2 divisors, whose sum is σ = 2090964882. Its totient is φ = 2090964880.

The previous prime is 2090964857. The next prime is 2090964901. The reversal of 2090964881 is 1884690902.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1289169025 + 801795856 = 35905^2 + 28316^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2090964881 is a prime.

It is a super-2 number, since 2×2090964881² = 8744268267150688322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2090966881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1045482440 + 1045482441.

It is an arithmetic number, because the mean of its divisors is an integer number (1045482441).

Almost surely, 2^2090964881 is an apocalyptic number.

It is an amenable number.

2090964881 is a deficient number, since it is larger than the sum of its proper divisors (1).

2090964881 is an equidigital number, since it uses as much as digits as its factorization.

2090964881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 47.

The square root of 2090964881 is about 45727.0694556299. The cubic root of 2090964881 is about 1278.7399874868.

The spelling of 2090964881 in words is "two billion, ninety million, nine hundred sixty-four thousand, eight hundred eighty-one".