3681118325 has 24 divisors (see below), whose sum is σ = 4620561408. Its totient is φ = 2908945280.

The previous prime is 3681118321. The next prime is 3681118351. The reversal of 3681118325 is 5238111863.

It is not a de Polignac number, because 3681118325 - 2² = 3681118321 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3681118321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1022729 + ... + 1026321.

It is an arithmetic number, because the mean of its divisors is an integer number (192523392).

Almost surely, 2^3681118325 is an apocalyptic number.

It is an amenable number.

3681118325 is a deficient number, since it is larger than the sum of its proper divisors (939443083).

3681118325 is a wasteful number, since it uses less digits than its factorization.

3681118325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4093 (or 4088 counting only the distinct ones).

The product of its digits is 34560, while the sum is 38.

The square root of 3681118325 is about 60672.2203730834. The cubic root of 3681118325 is about 1544.0449021647.

The spelling of 3681118325 in words is "three billion, six hundred eighty-one million, one hundred eighteen thousand, three hundred twenty-five".