3681101392388 has 144 divisors (see below), whose sum is σ = 7814633364720. Its totient is φ = 1510955357184.

The previous prime is 3681101392313. The next prime is 3681101392439. The reversal of 3681101392388 is 8832931011863.

It can be written as a sum of positive squares in 8 ways, for example, as 169495243204 + 3511606149184 = 411698^2 + 1873928^2 .

It is a super-2 number, since 2×3681101392388² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 582726206 + ... + 582732522.

It is an arithmetic number, because the mean of its divisors is an integer number (54268287255).

Almost surely, 2^{3681101392388} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3681101392388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3907316682360).

3681101392388 is an abundant number, since it is smaller than the sum of its proper divisors (4133531972332).

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

3681101392388 is a wasteful number, since it uses less digits than its factorization.

3681101392388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7174 (or 7165 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 53.

The spelling of 3681101392388 in words is "three trillion, six hundred eighty-one billion, one hundred one million, three hundred ninety-two thousand, three hundred eighty-eight".