2779126228 has 12 divisors (see below), whose sum is σ = 4863976992. Its totient is φ = 1389418520.

The previous prime is 2779126199. The next prime is 2779126243. The reversal of 2779126228 is 8226219772.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15201 + ... + 76087.

It is an arithmetic number, because the mean of its divisors is an integer number (405331416).

Almost surely, 2^2779126228 is an apocalyptic number.

It is an amenable number.

2779126228 is a deficient number, since it is larger than the sum of its proper divisors (2084850764).

2779126228 is a wasteful number, since it uses less digits than its factorization.

2779126228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72302 (or 72300 counting only the distinct ones).

The product of its digits is 338688, while the sum is 46.

The square root of 2779126228 is about 52717.4186393833. The cubic root of 2779126228 is about 1405.9485374321.

The spelling of 2779126228 in words is "two billion, seven hundred seventy-nine million, one hundred twenty-six thousand, two hundred twenty-eight".