2779982549216 has 96 divisors (see below), whose sum is σ = 5826939884640. Its totient is φ = 1301044985856.

The previous prime is 2779982549191. The next prime is 2779982549221. The reversal of 2779982549216 is 6129452899772.

It is a self number, because there is not a number n which added to its sum of digits gives 2779982549216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72761030 + ... + 72799226.

It is an arithmetic number, because the mean of its divisors is an integer number (60697290465).

Almost surely, 2^{2779982549216} 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 2779982549216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2913469942320).

2779982549216 is an abundant number, since it is smaller than the sum of its proper divisors (3046957335424).

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

2779982549216 is a wasteful number, since it uses less digits than its factorization.

2779982549216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38956 (or 38948 counting only the distinct ones).

The product of its digits is 274337280, while the sum is 71.

The spelling of 2779982549216 in words is "two trillion, seven hundred seventy-nine billion, nine hundred eighty-two million, five hundred forty-nine thousand, two hundred sixteen".