2780252756 has 12 divisors (see below), whose sum is σ = 4877341140. Its totient is φ = 1386726720.

The previous prime is 2780252687. The next prime is 2780252773. The reversal of 2780252756 is 6572520872.

2780252756 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2089404100 + 690848656 = 45710^2 + 26284^2 .

It is a congruent number.

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, 848075 + ... + 851346.

It is an arithmetic number, because the mean of its divisors is an integer number (406445095).

Almost surely, 2^2780252756 is an apocalyptic number.

It is an amenable number.

2780252756 is a deficient number, since it is larger than the sum of its proper divisors (2097088384).

2780252756 is a wasteful number, since it uses less digits than its factorization.

2780252756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1699834 (or 1699832 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 44.

The square root of 2780252756 is about 52728.1021467680. The cubic root of 2780252756 is about 1406.1384803982.

The spelling of 2780252756 in words is "two billion, seven hundred eighty million, two hundred fifty-two thousand, seven hundred fifty-six".