2786872272 has 80 divisors (see below), whose sum is σ = 7591656960. Its totient is φ = 878518656.

The previous prime is 2786872261. The next prime is 2786872279. The reversal of 2786872272 is 2722786872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2786872279) 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, 587703 + ... + 592425.

It is an arithmetic number, because the mean of its divisors is an integer number (94895712).

Almost surely, 2^2786872272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2786872272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3795828480).

2786872272 is an abundant number, since it is smaller than the sum of its proper divisors (4804784688).

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

2786872272 is a wasteful number, since it uses less digits than its factorization.

2786872272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5400 (or 5394 counting only the distinct ones).

The product of its digits is 2107392, while the sum is 51.

The square root of 2786872272 is about 52790.8351136824. The cubic root of 2786872272 is about 1407.2535563311.

The spelling of 2786872272 in words is "two billion, seven hundred eighty-six million, eight hundred seventy-two thousand, two hundred seventy-two".