3988818286236 has 144 divisors (see below), whose sum is σ = 11836081793536. Its totient is φ = 1108730477952.

The previous prime is 3988818286217. The next prime is 3988818286303. The reversal of 3988818286236 is 6326828188893.

3988818286236 is a `hidden beast` number, since 39 + 8 + 8 + 81 + 8 + 286 + 236 = 666.

It is a super-2 number, since 2×3988818286236² (a number of 26 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (72) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 101304225 + ... + 101343591.

Almost surely, 2^{3988818286236} is an apocalyptic number.

3988818286236 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3988818286236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5918040896768).

3988818286236 is an abundant number, since it is smaller than the sum of its proper divisors (7847263507300).

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

3988818286236 is a wasteful number, since it uses less digits than its factorization.

3988818286236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50288 (or 50283 counting only the distinct ones).

The product of its digits is 382205952, while the sum is 72.

The spelling of 3988818286236 in words is "three trillion, nine hundred eighty-eight billion, eight hundred eighteen million, two hundred eighty-six thousand, two hundred thirty-six".