2491982999 has 16 divisors (see below), whose sum is σ = 2809344384. Its totient is φ = 2190804000.

The previous prime is 2491982923. The next prime is 2491983023. The reversal of 2491982999 is 9992891942.

It is a de Polignac number, because none of the positive numbers 2^k-2491982999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2491988999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21692 + ... + 73854.

It is an arithmetic number, because the mean of its divisors is an integer number (175584024).

Almost surely, 2^2491982999 is an apocalyptic number.

2491982999 is a deficient number, since it is larger than the sum of its proper divisors (317361385).

2491982999 is a wasteful number, since it uses less digits than its factorization.

2491982999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52318.

The product of its digits is 7558272, while the sum is 62.

The square root of 2491982999 is about 49919.7656144337. The cubic root of 2491982999 is about 1355.7564888401.

The spelling of 2491982999 in words is "two billion, four hundred ninety-one million, nine hundred eighty-two thousand, nine hundred ninety-nine".