2780833788 has 24 divisors (see below), whose sum is σ = 7209569360. Its totient is φ = 926944560.

The previous prime is 2780833729. The next prime is 2780833793. The reversal of 2780833788 is 8873380872.

It is a happy number.

2780833788 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

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, 12874123 + ... + 12874338.

Almost surely, 2^2780833788 is an apocalyptic number.

It is an amenable number.

2780833788 is an abundant number, since it is smaller than the sum of its proper divisors (4428735572).

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

2780833788 is a wasteful number, since it uses less digits than its factorization.

2780833788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25748474 (or 25748466 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 54.

The square root of 2780833788 is about 52733.6115584738. The cubic root of 2780833788 is about 1406.2364276735.

The spelling of 2780833788 in words is "two billion, seven hundred eighty million, eight hundred thirty-three thousand, seven hundred eighty-eight".