2865163784 has 32 divisors (see below), whose sum is σ = 6217363200. Its totient is φ = 1212382080.

The previous prime is 2865163753. The next prime is 2865163789. The reversal of 2865163784 is 4873615682.

It is not an unprimeable number, because it can be changed into a prime (2865163789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319397 + ... + 328244.

It is an arithmetic number, because the mean of its divisors is an integer number (194292600).

Almost surely, 2^2865163784 is an apocalyptic number.

It is an amenable number.

2865163784 is an abundant number, since it is smaller than the sum of its proper divisors (3352199416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2865163784 is a wasteful number, since it uses less digits than its factorization.

2865163784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647733 (or 647729 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 50.

The square root of 2865163784 is about 53527.2246992126. The cubic root of 2865163784 is about 1420.3100202557.

The spelling of 2865163784 in words is "two billion, eight hundred sixty-five million, one hundred sixty-three thousand, seven hundred eighty-four".