2981991496 has 32 divisors (see below), whose sum is σ = 6147578880. Its totient is φ = 1344772800.

The previous prime is 2981991491. The next prime is 2981991503. The reversal of 2981991496 is 6941991892.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2981991496.

It is not an unprimeable number, because it can be changed into a prime (2981991491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122235 + ... + 144586.

It is an arithmetic number, because the mean of its divisors is an integer number (192111840).

Almost surely, 2^2981991496 is an apocalyptic number.

It is an amenable number.

2981991496 is an abundant number, since it is smaller than the sum of its proper divisors (3165587384).

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

2981991496 is a wasteful number, since it uses less digits than its factorization.

2981991496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266965 (or 266961 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 58.

The square root of 2981991496 is about 54607.6139013599. The cubic root of 2981991496 is about 1439.3579146159.

The spelling of 2981991496 in words is "two billion, nine hundred eighty-one million, nine hundred ninety-one thousand, four hundred ninety-six".