2784774872 has 16 divisors (see below), whose sum is σ = 5696130600. Its totient is φ = 1265806720.

The previous prime is 2784774871. The next prime is 2784774877.

2784774872 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2784774871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15822497 + ... + 15822672.

Almost surely, 2^2784774872 is an apocalyptic number.

2784774872 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2784774872 is an abundant number, since it is smaller than the sum of its proper divisors (2911355728).

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

2784774872 is a wasteful number, since it uses less digits than its factorization.

2784774872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31645186 (or 31645182 counting only the distinct ones).

The product of its digits is 9834496, while the sum is 56.

The square root of 2784774872 is about 52770.9661840675. The cubic root of 2784774872 is about 1406.9004347332.

The spelling of 2784774872 in words is "two billion, seven hundred eighty-four million, seven hundred seventy-four thousand, eight hundred seventy-two".