2900791881 has 27 divisors (see below), whose sum is σ = 4540423797. Its totient is φ = 1783810080.

The previous prime is 2900791853. The next prime is 2900791891. The reversal of 2900791881 is 1881970092.

The square root of 2900791881 is 53859.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 517790025 + 2383001856 = 22755^2 + 48816^2 .

It is not a de Polignac number, because 2900791881 - 2⁵ = 2900791849 is a prime.

It is a super-2 number, since 2×2900791881² = 16829187073751036322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2900791801) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2099811 + ... + 2101191.

Almost surely, 2^2900791881 is an apocalyptic number.

2900791881 is the 53859-th square number.

2900791881 is the 26930-th centered octagonal number.

It is an amenable number.

2900791881 is a deficient number, since it is larger than the sum of its proper divisors (1639631916).

2900791881 is an equidigital number, since it uses as much as digits as its factorization.

2900791881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2794 (or 1397 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 45.

The cubic root of 2900791881 is about 1426.1729349244.

The spelling of 2900791881 in words is "two billion, nine hundred million, seven hundred ninety-one thousand, eight hundred eighty-one".