3681133808 has 40 divisors (see below), whose sum is σ = 8118873216. Its totient is φ = 1600491200.

The previous prime is 3681133793. The next prime is 3681133817. The reversal of 3681133808 is 8083311863.

It is a super-2 number, since 2×3681133808² = 27101492224801161728, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 450638 + ... + 458733.

Almost surely, 2^3681133808 is an apocalyptic number.

It is an amenable number.

3681133808 is an abundant number, since it is smaller than the sum of its proper divisors (4437739408).

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

3681133808 is a wasteful number, since it uses less digits than its factorization.

3681133808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909413 (or 909407 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 3681133808 is about 60672.3479684114. The cubic root of 3681133808 is about 1544.0470669429.

The spelling of 3681133808 in words is "three billion, six hundred eighty-one million, one hundred thirty-three thousand, eight hundred eight".