3281237568 has 126 divisors (see below), whose sum is σ = 10940691606. Its totient is φ = 937488384.

The previous prime is 3281237537. The next prime is 3281237581. The reversal of 3281237568 is 8657321823.

3281237568 is a `hidden beast` number, since 3 + 2 + 81 + 2 + 3 + 7 + 568 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2196984384 + 1084253184 = 46872^2 + 32928^2 .

It is a tau number, because it is divible by the number of its divisors (126).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 29905 + ... + 86352.

Almost surely, 2^3281237568 is an apocalyptic number.

It is an amenable number.

3281237568 is an abundant number, since it is smaller than the sum of its proper divisors (7659454038).

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

3281237568 is a wasteful number, since it uses less digits than its factorization.

3281237568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116289 (or 116269 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 3281237568 is about 57282.0876714528. The cubic root of 3281237568 is about 1485.9786114941.

The spelling of 3281237568 in words is "three billion, two hundred eighty-one million, two hundred thirty-seven thousand, five hundred sixty-eight".