3216987288825 has 48 divisors (see below), whose sum is σ = 5408951174016. Its totient is φ = 1686781324800.

The previous prime is 3216987288793. The next prime is 3216987288847. The reversal of 3216987288825 is 5288827896123.

It is a happy number.

It is not a de Polignac number, because 3216987288825 - 2⁵ = 3216987288793 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3216987288825.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 758067 + ... + 2647383.

It is an arithmetic number, because the mean of its divisors is an integer number (112686482792).

Almost surely, 2^{3216987288825} is an apocalyptic number.

It is an amenable number.

3216987288825 is a deficient number, since it is larger than the sum of its proper divisors (2191963885191).

3216987288825 is a wasteful number, since it uses less digits than its factorization.

3216987288825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1889714 (or 1889709 counting only the distinct ones).

The product of its digits is 185794560, while the sum is 69.

The spelling of 3216987288825 in words is "three trillion, two hundred sixteen billion, nine hundred eighty-seven million, two hundred eighty-eight thousand, eight hundred twenty-five".