2319893865 has 80 divisors (see below), whose sum is σ = 4478664960. Its totient is φ = 1144558080.

The previous prime is 2319893837. The next prime is 2319893881. The reversal of 2319893865 is 5683989132.

It is not a de Polignac number, because 2319893865 - 2⁶ = 2319893801 is a prime.

Together with 2158771095 it forms an amicable pair .

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 403360 + ... + 409070.

It is an arithmetic number, because the mean of its divisors is an integer number (55983312).

Almost surely, 2^2319893865 is an apocalyptic number.

It is an amenable number.

2319893865 is a deficient number, since it is larger than the sum of its proper divisors (2158771095).

2319893865 is a wasteful number, since it uses less digits than its factorization.

2319893865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5804 (or 5795 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The square root of 2319893865 is about 48165.2765485676. The cubic root of 2319893865 is about 1323.8010019753.

The spelling of 2319893865 in words is "two billion, three hundred nineteen million, eight hundred ninety-three thousand, eight hundred sixty-five".