2865255984 has 40 divisors (see below), whose sum is σ = 8224347120. Its totient is φ = 955085184.

The previous prime is 2865255961. The next prime is 2865255997. The reversal of 2865255984 is 4895525682.

2865255984 is a `hidden beast` number, since 2 + 8 + 6 + 5 + 2 + 559 + 84 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 2865255984.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3315837 + ... + 3316700.

It is an arithmetic number, because the mean of its divisors is an integer number (205608678).

Almost surely, 2^2865255984 is an apocalyptic number.

2865255984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2865255984 is an abundant number, since it is smaller than the sum of its proper divisors (5359091136).

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

2865255984 is a wasteful number, since it uses less digits than its factorization.

2865255984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6632554 (or 6632542 counting only the distinct ones).

The product of its digits is 6912000, while the sum is 54.

The square root of 2865255984 is about 53528.0859362634. The cubic root of 2865255984 is about 1420.3252551240.

The spelling of 2865255984 in words is "two billion, eight hundred sixty-five million, two hundred fifty-five thousand, nine hundred eighty-four".