2640776996 has 24 divisors (see below), whose sum is σ = 5429290944. Its totient is φ = 1108018080.

The previous prime is 2640776989. The next prime is 2640777001. The reversal of 2640776996 is 6996770462.

2640776996 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2307800 + ... + 2308943.

It is an arithmetic number, because the mean of its divisors is an integer number (226220456).

Almost surely, 2^2640776996 is an apocalyptic number.

2640776996 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2640776996 is an abundant number, since it is smaller than the sum of its proper divisors (2788513948).

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

2640776996 is a wasteful number, since it uses less digits than its factorization.

2640776996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4616771 (or 4616769 counting only the distinct ones).

The product of its (nonzero) digits is 6858432, while the sum is 56.

The square root of 2640776996 is about 51388.4908904708. The cubic root of 2640776996 is about 1382.2202228843.

The spelling of 2640776996 in words is "two billion, six hundred forty million, seven hundred seventy-six thousand, nine hundred ninety-six".