2991469664 has 24 divisors (see below), whose sum is σ = 5924732688. Its totient is φ = 1486775680.

The previous prime is 2991469661. The next prime is 2991469681. The reversal of 2991469664 is 4669641992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2991469661) 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 3 ways as a sum of consecutive naturals, for example, 274547 + ... + 285234.

It is an arithmetic number, because the mean of its divisors is an integer number (246863862).

Almost surely, 2^2991469664 is an apocalyptic number.

It is an amenable number.

2991469664 is a deficient number, since it is larger than the sum of its proper divisors (2933263024).

2991469664 is a wasteful number, since it uses less digits than its factorization.

2991469664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559958 (or 559950 counting only the distinct ones).

The product of its digits is 5038848, while the sum is 56.

The square root of 2991469664 is about 54694.3293587187. The cubic root of 2991469664 is about 1440.8812866701.

The spelling of 2991469664 in words is "two billion, nine hundred ninety-one million, four hundred sixty-nine thousand, six hundred sixty-four".