2640078792 has 192 divisors, whose sum is σ = 8200742400. Its totient is φ = 785790720.

The previous prime is 2640078773. The next prime is 2640078803. The reversal of 2640078792 is 2978700462.

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 47 ways as a sum of consecutive naturals, for example, 1130458 + ... + 1132790.

It is an arithmetic number, because the mean of its divisors is an integer number (42712200).

Almost surely, 2^2640078792 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 2640078792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4100371200).

2640078792 is an abundant number, since it is smaller than the sum of its proper divisors (5560663608).

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

2640078792 is a wasteful number, since it uses less digits than its factorization.

2640078792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2405 (or 2382 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 2640078792 is about 51381.6970525498. The cubic root of 2640078792 is about 1382.0983955136.

The spelling of 2640078792 in words is "two billion, six hundred forty million, seventy-eight thousand, seven hundred ninety-two".