2985908081 has 24 divisors (see below), whose sum is σ = 3294635904. Its totient is φ = 2689822080.

The previous prime is 2985908077. The next prime is 2985908099. The reversal of 2985908081 is 1808095892.

It is not a de Polignac number, because 2985908081 - 2² = 2985908077 is a prime.

It is a super-2 number, since 2×2985908081² = 17831294136362205122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2985908041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11017976 + ... + 11018246.

It is an arithmetic number, because the mean of its divisors is an integer number (137276496).

Almost surely, 2^2985908081 is an apocalyptic number.

It is an amenable number.

2985908081 is a deficient number, since it is larger than the sum of its proper divisors (308727823).

2985908081 is a wasteful number, since it uses less digits than its factorization.

2985908081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569 (or 480 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 50.

The square root of 2985908081 is about 54643.4632961711. The cubic root of 2985908081 is about 1439.9877958392.

The spelling of 2985908081 in words is "two billion, nine hundred eighty-five million, nine hundred eight thousand, eighty-one".