3818485636 has 72 divisors (see below), whose sum is σ = 8083378688. Its totient is φ = 1544486400.

The previous prime is 3818485621. The next prime is 3818485661. The reversal of 3818485636 is 6365848183.

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 23 ways as a sum of consecutive naturals, for example, 1457800 + ... + 1460416.

Almost surely, 2^3818485636 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 3818485636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4041689344).

3818485636 is an abundant number, since it is smaller than the sum of its proper divisors (4264893052).

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

3818485636 is a wasteful number, since it uses less digits than its factorization.

3818485636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2741 (or 2698 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 52.

The square root of 3818485636 is about 61793.8964299873. The cubic root of 3818485636 is about 1563.0170677066.

The spelling of 3818485636 in words is "three billion, eight hundred eighteen million, four hundred eighty-five thousand, six hundred thirty-six".