2288888865 has 48 divisors (see below), whose sum is σ = 4188412800. Its totient is φ = 1153115136.

The previous prime is 2288888863. The next prime is 2288888867. The reversal of 2288888865 is 5688888822.

It is an interprime number because it is at equal distance from previous prime (2288888863) and next prime (2288888867).

It is not a de Polignac number, because 2288888865 - 2¹ = 2288888863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2288888863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 303217 + ... + 310673.

It is an arithmetic number, because the mean of its divisors is an integer number (87258600).

Almost surely, 2^2288888865 is an apocalyptic number.

It is an amenable number.

2288888865 is a deficient number, since it is larger than the sum of its proper divisors (1899523935).

2288888865 is a wasteful number, since it uses less digits than its factorization.

2288888865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7846 (or 7843 counting only the distinct ones).

The product of its digits is 31457280, while the sum is 63.

The square root of 2288888865 is about 47842.3333983617. Note that the first 4 decimals coincide. The cubic root of 2288888865 is about 1317.8770713837.

The spelling of 2288888865 in words is "two billion, two hundred eighty-eight million, eight hundred eighty-eight thousand, eight hundred sixty-five".