2779126226 has 4 divisors (see below), whose sum is σ = 4168689342. Its totient is φ = 1389563112.

The previous prime is 2779126199. The next prime is 2779126243. The reversal of 2779126226 is 6226219772.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2724735601 + 54390625 = 52199^2 + 7375^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 694781555 + ... + 694781558.

Almost surely, 2^2779126226 is an apocalyptic number.

2779126226 is a deficient number, since it is larger than the sum of its proper divisors (1389563116).

2779126226 is a wasteful number, since it uses less digits than its factorization.

2779126226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389563115.

The product of its digits is 254016, while the sum is 44.

The square root of 2779126226 is about 52717.4186204143. The cubic root of 2779126226 is about 1405.9485370948.

The spelling of 2779126226 in words is "two billion, seven hundred seventy-nine million, one hundred twenty-six thousand, two hundred twenty-six".