2865899028 has 24 divisors (see below), whose sum is σ = 6688196032. Its totient is φ = 955142784.

The previous prime is 2865899009. The next prime is 2865899033. The reversal of 2865899028 is 8209985682.

It is a congruent number.

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, 74601 + ... + 106287.

Almost surely, 2^2865899028 is an apocalyptic number.

It is an amenable number.

2865899028 is an abundant number, since it is smaller than the sum of its proper divisors (3822297004).

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

2865899028 is a wasteful number, since it uses less digits than its factorization.

2865899028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39231 (or 39229 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 57.

The square root of 2865899028 is about 53534.0922030065. The cubic root of 2865899028 is about 1420.4315008163.

The spelling of 2865899028 in words is "two billion, eight hundred sixty-five million, eight hundred ninety-nine thousand, twenty-eight".