2971002991 has 16 divisors (see below), whose sum is σ = 3358052640. Its totient is φ = 2603735680.

The previous prime is 2971002973. The next prime is 2971003003. The reversal of 2971002991 is 1992001792.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2971002991 - 2⁵ = 2971002959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2971002941) 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, 209085 + ... + 222841.

It is an arithmetic number, because the mean of its divisors is an integer number (209878290).

Almost surely, 2^2971002991 is an apocalyptic number.

2971002991 is a deficient number, since it is larger than the sum of its proper divisors (387049649).

2971002991 is a wasteful number, since it uses less digits than its factorization.

2971002991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14474.

The product of its (nonzero) digits is 20412, while the sum is 40.

The square root of 2971002991 is about 54506.9077365429. The cubic root of 2971002991 is about 1437.5877487052.

The spelling of 2971002991 in words is "two billion, nine hundred seventy-one million, two thousand, nine hundred ninety-one".