3261615896 has 64 divisors (see below), whose sum is σ = 7870556160. Its totient is φ = 1229760000.

The previous prime is 3261615871. The next prime is 3261615913. The reversal of 3261615896 is 6985161623.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 3261615896.

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 15 ways as a sum of consecutive naturals, for example, 66305 + ... + 104496.

It is an arithmetic number, because the mean of its divisors is an integer number (122977440).

Almost surely, 2^3261615896 is an apocalyptic number.

It is an amenable number.

3261615896 is an abundant number, since it is smaller than the sum of its proper divisors (4608940264).

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

3261615896 is a wasteful number, since it uses less digits than its factorization.

3261615896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170856 (or 170852 counting only the distinct ones).

The product of its digits is 466560, while the sum is 47.

The square root of 3261615896 is about 57110.5585334271. The cubic root of 3261615896 is about 1483.0106562461.

The spelling of 3261615896 in words is "three billion, two hundred sixty-one million, six hundred fifteen thousand, eight hundred ninety-six".