3681628325 has 6 divisors (see below), whose sum is σ = 4565219154. Its totient is φ = 2945302640.

The previous prime is 3681628319. The next prime is 3681628369. The reversal of 3681628325 is 5238261863.

3681628325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 4661281 + 3676967044 = 2159^2 + 60638^2 .

It is not a de Polignac number, because 3681628325 - 2¹² = 3681624229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73632542 + ... + 73632591.

It is an arithmetic number, because the mean of its divisors is an integer number (760869859).

Almost surely, 2^3681628325 is an apocalyptic number.

It is an amenable number.

3681628325 is a deficient number, since it is larger than the sum of its proper divisors (883590829).

3681628325 is a wasteful number, since it uses less digits than its factorization.

3681628325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147265143 (or 147265138 counting only the distinct ones).

The product of its digits is 414720, while the sum is 44.

The square root of 3681628325 is about 60676.4231394699. The cubic root of 3681628325 is about 1544.1162053636.

The spelling of 3681628325 in words is "three billion, six hundred eighty-one million, six hundred twenty-eight thousand, three hundred twenty-five".