3681101636 has 12 divisors (see below), whose sum is σ = 6462251628. Its totient is φ = 1834744032.

The previous prime is 3681101623. The next prime is 3681101657. The reversal of 3681101636 is 6361011863.

It is a happy number.

3681101636 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 2 ways, for example, as 289204036 + 3391897600 = 17006^2 + 58240^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3681101596 and 3681101605.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1450271 + ... + 1452806.

It is an arithmetic number, because the mean of its divisors is an integer number (538520969).

Almost surely, 2^3681101636 is an apocalyptic number.

It is an amenable number.

3681101636 is a deficient number, since it is larger than the sum of its proper divisors (2781149992).

3681101636 is a wasteful number, since it uses less digits than its factorization.

3681101636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2903398 (or 2903396 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 3681101636 is about 60672.0828388148. The cubic root of 3681101636 is about 1544.0425687611.

The spelling of 3681101636 in words is "three billion, six hundred eighty-one million, one hundred one thousand, six hundred thirty-six".