2780968944 has 80 divisors (see below), whose sum is σ = 7901494272. Its totient is φ = 837467904.

The previous prime is 2780968943. The next prime is 2780968961. The reversal of 2780968944 is 4498690872.

2780968944 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2780968943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18084 + ... + 76739.

Almost surely, 2^2780968944 is an apocalyptic number.

2780968944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2780968944 is an abundant number, since it is smaller than the sum of its proper divisors (5120525328).

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

2780968944 is a wasteful number, since it uses less digits than its factorization.

2780968944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94894 (or 94888 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 57.

The square root of 2780968944 is about 52734.8930405666. The cubic root of 2780968944 is about 1406.2592095950.

The spelling of 2780968944 in words is "two billion, seven hundred eighty million, nine hundred sixty-eight thousand, nine hundred forty-four".