3281112864 has 72 divisors (see below), whose sum is σ = 9529228800. Its totient is φ = 1070429568.

The previous prime is 3281112839. The next prime is 3281112941. The reversal of 3281112864 is 4682111823.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107664 + ... + 134735.

It is an arithmetic number, because the mean of its divisors is an integer number (132350400).

Almost surely, 2^3281112864 is an apocalyptic number.

It is an amenable number.

3281112864 is an abundant number, since it is smaller than the sum of its proper divisors (6248115936).

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

3281112864 is a wasteful number, since it uses less digits than its factorization.

3281112864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242462 (or 242451 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 3281112864 is about 57280.9991532969. Note that the first 3 decimals coincide. The cubic root of 3281112864 is about 1485.9597862978.

The spelling of 3281112864 in words is "three billion, two hundred eighty-one million, one hundred twelve thousand, eight hundred sixty-four".