3261871296 has 140 divisors (see below), whose sum is σ = 9894749832. Its totient is φ = 1061932032.

The previous prime is 3261871241. The next prime is 3261871297. The reversal of 3261871296 is 6921781623.

3261871296 is a `hidden beast` number, since 3 + 2 + 618 + 7 + 1 + 29 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (3261871297) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 215596 + ... + 230228.

Almost surely, 2^3261871296 is an apocalyptic number.

3261871296 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3261871296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4947374916).

3261871296 is an abundant number, since it is smaller than the sum of its proper divisors (6632878536).

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

3261871296 is a wasteful number, since it uses less digits than its factorization.

3261871296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14700 (or 14681 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 3261871296 is about 57112.7945035086. The cubic root of 3261871296 is about 1483.0493641594.

The spelling of 3261871296 in words is "three billion, two hundred sixty-one million, eight hundred seventy-one thousand, two hundred ninety-six".