2644989352 has 16 divisors (see below), whose sum is σ = 5043412800. Its totient is φ = 1300079280.

The previous prime is 2644989323. The next prime is 2644989367. The reversal of 2644989352 is 2539894462.

It is a self number, because there is not a number n which added to its sum of digits gives 2644989352.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2801424 + ... + 2802367.

It is an arithmetic number, because the mean of its divisors is an integer number (315213300).

Almost surely, 2^2644989352 is an apocalyptic number.

It is an amenable number.

2644989352 is a deficient number, since it is larger than the sum of its proper divisors (2398423448).

2644989352 is a wasteful number, since it uses less digits than its factorization.

2644989352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5603856 (or 5603852 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 52.

The square root of 2644989352 is about 51429.4599621657. The cubic root of 2644989352 is about 1382.9547681321.

The spelling of 2644989352 in words is "two billion, six hundred forty-four million, nine hundred eighty-nine thousand, three hundred fifty-two".