2990172885 has 16 divisors (see below), whose sum is σ = 5467744896. Its totient is φ = 1366936128.

The previous prime is 2990172883. The next prime is 2990172893. The reversal of 2990172885 is 5882710992.

It is not a de Polignac number, because 2990172885 - 2¹ = 2990172883 is a prime.

It is a super-2 number, since 2×2990172885² = 17882267764378446450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2990172883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14238814 + ... + 14239023.

It is an arithmetic number, because the mean of its divisors is an integer number (341734056).

Almost surely, 2^2990172885 is an apocalyptic number.

It is an amenable number.

2990172885 is a deficient number, since it is larger than the sum of its proper divisors (2477572011).

2990172885 is a wasteful number, since it uses less digits than its factorization.

2990172885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28477852.

The product of its (nonzero) digits is 725760, while the sum is 51.

The square root of 2990172885 is about 54682.4732889799. The cubic root of 2990172885 is about 1440.6730529408.

The spelling of 2990172885 in words is "two billion, nine hundred ninety million, one hundred seventy-two thousand, eight hundred eighty-five".