2979844864 has 72 divisors (see below), whose sum is σ = 6417260640. Its totient is φ = 1375715328.

The previous prime is 2979844853. The next prime is 2979844873. The reversal of 2979844864 is 4684489792.

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 7 ways as a sum of consecutive naturals, for example, 224197 + ... + 237115.

It is an arithmetic number, because the mean of its divisors is an integer number (89128620).

Almost surely, 2^2979844864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2979844864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3208630320).

2979844864 is an abundant number, since it is smaller than the sum of its proper divisors (3437415776).

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

2979844864 is a wasteful number, since it uses less digits than its factorization.

2979844864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13005 (or 12991 counting only the distinct ones).

The product of its digits is 27869184, while the sum is 61.

The square root of 2979844864 is about 54587.9553015132. The cubic root of 2979844864 is about 1439.0124504671.

The spelling of 2979844864 in words is "two billion, nine hundred seventy-nine million, eight hundred forty-four thousand, eight hundred sixty-four".