2644989022 has 32 divisors (see below), whose sum is σ = 4451983200. Its totient is φ = 1170142848.

The previous prime is 2644988999. The next prime is 2644989041. The reversal of 2644989022 is 2209894462.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92188 + ... + 117424.

It is an arithmetic number, because the mean of its divisors is an integer number (139124475).

Almost surely, 2^2644989022 is an apocalyptic number.

2644989022 is a deficient number, since it is larger than the sum of its proper divisors (1806994178).

2644989022 is a wasteful number, since it uses less digits than its factorization.

2644989022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25420.

The product of its (nonzero) digits is 497664, while the sum is 46.

The square root of 2644989022 is about 51429.4567538876. The cubic root of 2644989022 is about 1382.9547106177.

The spelling of 2644989022 in words is "two billion, six hundred forty-four million, nine hundred eighty-nine thousand, twenty-two".