2865321008 has 20 divisors (see below), whose sum is σ = 6056247048. Its totient is φ = 1302418560.

The previous prime is 2865320903. The next prime is 2865321023. The reversal of 2865321008 is 8001235682.

It is a super-2 number, since 2×2865321008² = 16420128957772272128, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

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 3 ways as a sum of consecutive naturals, for example, 8139941 + ... + 8140292.

Almost surely, 2^2865321008 is an apocalyptic number.

It is an amenable number.

2865321008 is an abundant number, since it is smaller than the sum of its proper divisors (3190926040).

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

2865321008 is a wasteful number, since it uses less digits than its factorization.

2865321008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16280252 (or 16280246 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 2865321008 is about 53528.6933148942. The cubic root of 2865321008 is about 1420.3359993102.

The spelling of 2865321008 in words is "two billion, eight hundred sixty-five million, three hundred twenty-one thousand, eight".