2265819915 has 32 divisors (see below), whose sum is σ = 3746820096. Its totient is φ = 1168030080.

The previous prime is 2265819877. The next prime is 2265819923. The reversal of 2265819915 is 5199185622.

It is not a de Polignac number, because 2265819915 - 2⁹ = 2265819403 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 454617 + ... + 459573.

It is an arithmetic number, because the mean of its divisors is an integer number (117088128).

Almost surely, 2^2265819915 is an apocalyptic number.

2265819915 is a deficient number, since it is larger than the sum of its proper divisors (1481000181).

2265819915 is a wasteful number, since it uses less digits than its factorization.

2265819915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5979.

The product of its digits is 388800, while the sum is 48.

The square root of 2265819915 is about 47600.6293550831. The cubic root of 2265819915 is about 1313.4346315243.

The spelling of 2265819915 in words is "two billion, two hundred sixty-five million, eight hundred nineteen thousand, nine hundred fifteen".