2279780265 has 64 divisors (see below), whose sum is σ = 4396953600. Its totient is φ = 985353984.

The previous prime is 2279780159. The next prime is 2279780273. The reversal of 2279780265 is 5620879722.

It is not a de Polignac number, because 2279780265 - 2⁷ = 2279780137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1461556 + ... + 1463114.

It is an arithmetic number, because the mean of its divisors is an integer number (68702400).

Almost surely, 2^2279780265 is an apocalyptic number.

It is an amenable number.

2279780265 is a deficient number, since it is larger than the sum of its proper divisors (2117173335).

2279780265 is a wasteful number, since it uses less digits than its factorization.

2279780265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2326.

The product of its (nonzero) digits is 846720, while the sum is 48.

The square root of 2279780265 is about 47747.0445682243. The cubic root of 2279780265 is about 1316.1265897649.

The spelling of 2279780265 in words is "two billion, two hundred seventy-nine million, seven hundred eighty thousand, two hundred sixty-five".