2277775989 has 6 divisors (see below), whose sum is σ = 3290120886. Its totient is φ = 1518517320.

The previous prime is 2277775979. The next prime is 2277776009. The reversal of 2277775989 is 9895777722.

It can be written as a sum of positive squares in only one way, i.e., 1884428100 + 393347889 = 43410^2 + 19833^2 .

It is not a de Polignac number, because 2277775989 - 2⁸ = 2277775733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2277775909) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 126543102 + ... + 126543119.

It is an arithmetic number, because the mean of its divisors is an integer number (548353481).

Almost surely, 2^2277775989 is an apocalyptic number.

It is an amenable number.

2277775989 is a deficient number, since it is larger than the sum of its proper divisors (1012344897).

2277775989 is a wasteful number, since it uses less digits than its factorization.

2277775989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253086227 (or 253086224 counting only the distinct ones).

The product of its digits is 31116960, while the sum is 63.

The square root of 2277775989 is about 47726.0514708686. The cubic root of 2277775989 is about 1315.7407844033.

The spelling of 2277775989 in words is "two billion, two hundred seventy-seven million, seven hundred seventy-five thousand, nine hundred eighty-nine".