2776984272 has 60 divisors (see below), whose sum is σ = 8228865060. Its totient is φ = 871209984.

The previous prime is 2776984271. The next prime is 2776984279. The reversal of 2776984272 is 2724896772.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1786245696 + 990738576 = 42264^2 + 31476^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2776984271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 564747 + ... + 569642.

It is an arithmetic number, because the mean of its divisors is an integer number (137147751).

Almost surely, 2^2776984272 is an apocalyptic number.

It is an amenable number.

2776984272 is an abundant number, since it is smaller than the sum of its proper divisors (5451880788).

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

2776984272 is a wasteful number, since it uses less digits than its factorization.

2776984272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134420 (or 1134411 counting only the distinct ones).

The product of its digits is 4741632, while the sum is 54.

The square root of 2776984272 is about 52697.0992750075. The cubic root of 2776984272 is about 1405.5872423500.

The spelling of 2776984272 in words is "two billion, seven hundred seventy-six million, nine hundred eighty-four thousand, two hundred seventy-two".