2279866845 has 16 divisors (see below), whose sum is σ = 3648827520. Its totient is φ = 1215582144.

The previous prime is 2279866843. The next prime is 2279866861. The reversal of 2279866845 is 5486689722.

It is a happy number.

It is not a de Polignac number, because 2279866845 - 2¹ = 2279866843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2279866843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37951 + ... + 77459.

It is an arithmetic number, because the mean of its divisors is an integer number (228051720).

Almost surely, 2^2279866845 is an apocalyptic number.

It is an amenable number.

2279866845 is a deficient number, since it is larger than the sum of its proper divisors (1368960675).

2279866845 is a wasteful number, since it uses less digits than its factorization.

2279866845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43364.

The product of its digits is 11612160, while the sum is 57.

The square root of 2279866845 is about 47747.9512125913. The cubic root of 2279866845 is about 1316.1432505515.

The spelling of 2279866845 in words is "two billion, two hundred seventy-nine million, eight hundred sixty-six thousand, eight hundred forty-five".