2644686912 has 112 divisors (see below), whose sum is σ = 8418007040. Its totient is φ = 715848192.

The previous prime is 2644686853. The next prime is 2644686959. The reversal of 2644686912 is 2196864462.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 26248 + ... + 77319.

Almost surely, 2^2644686912 is an apocalyptic number.

It is an amenable number.

2644686912 is an abundant number, since it is smaller than the sum of its proper divisors (5773320128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2644686912 is a wasteful number, since it uses less digits than its factorization.

2644686912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103608 (or 103598 counting only the distinct ones).

The product of its digits is 995328, while the sum is 48.

The square root of 2644686912 is about 51426.5195400194. The cubic root of 2644686912 is about 1382.9020550298.

The spelling of 2644686912 in words is "two billion, six hundred forty-four million, six hundred eighty-six thousand, nine hundred twelve".