2764081856 has 28 divisors (see below), whose sum is σ = 5723455152. Its totient is φ = 1321951488.

The previous prime is 2764081849. The next prime is 2764081877. The reversal of 2764081856 is 6581804672.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2764081856.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 937415 + ... + 940358.

Almost surely, 2^2764081856 is an apocalyptic number.

It is an amenable number.

2764081856 is an abundant number, since it is smaller than the sum of its proper divisors (2959373296).

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

2764081856 is a wasteful number, since it uses less digits than its factorization.

2764081856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1877808 (or 1877798 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 47.

The square root of 2764081856 is about 52574.5361938648. The cubic root of 2764081856 is about 1403.4069838080.

The spelling of 2764081856 in words is "two billion, seven hundred sixty-four million, eighty-one thousand, eight hundred fifty-six".