2644031966 has 8 divisors (see below), whose sum is σ = 4002434040. Its totient is φ = 1309887288.

The previous prime is 2644031867. The next prime is 2644031987. The reversal of 2644031966 is 6691304462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6064076 + ... + 6064511.

It is an arithmetic number, because the mean of its divisors is an integer number (500304255).

Almost surely, 2^2644031966 is an apocalyptic number.

2644031966 is a deficient number, since it is larger than the sum of its proper divisors (1358402074).

2644031966 is a wasteful number, since it uses less digits than its factorization.

2644031966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12128698.

The product of its (nonzero) digits is 186624, while the sum is 41.

The square root of 2644031966 is about 51420.1513611152. The cubic root of 2644031966 is about 1382.7878889078.

The spelling of 2644031966 in words is "two billion, six hundred forty-four million, thirty-one thousand, nine hundred sixty-six".