2765040784 has 80 divisors (see below), whose sum is σ = 6196317696. Its totient is φ = 1183334400.

The previous prime is 2765040763. The next prime is 2765040799. The reversal of 2765040784 is 4870405672.

It is a self number, because there is not a number n which added to its sum of digits gives 2765040784.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195024 + ... + 208720.

Almost surely, 2^2765040784 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 2765040784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3098158848).

2765040784 is an abundant number, since it is smaller than the sum of its proper divisors (3431276912).

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

2765040784 is a wasteful number, since it uses less digits than its factorization.

2765040784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13784 (or 13778 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 43.

The square root of 2765040784 is about 52583.6551030831. The cubic root of 2765040784 is about 1403.5692571807.

The spelling of 2765040784 in words is "two billion, seven hundred sixty-five million, forty thousand, seven hundred eighty-four".