2779009772 has 24 divisors (see below), whose sum is σ = 6063294720. Its totient is φ = 1082730960.

The previous prime is 2779009769. The next prime is 2779009811.

2779009772 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 2779009772.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4511072 + ... + 4511687.

It is an arithmetic number, because the mean of its divisors is an integer number (252637280).

Almost surely, 2^2779009772 is an apocalyptic number.

2779009772 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2779009772 is an abundant number, since it is smaller than the sum of its proper divisors (3284284948).

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

2779009772 is a wasteful number, since it uses less digits than its factorization.

2779009772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9022781 (or 9022779 counting only the distinct ones).

The product of its (nonzero) digits is 777924, while the sum is 50.

The square root of 2779009772 is about 52716.3140972508. The cubic root of 2779009772 is about 1405.9288989538.

The spelling of 2779009772 in words is "two billion, seven hundred seventy-nine million, nine thousand, seven hundred seventy-two".