3636189144 has 320 divisors, whose sum is σ = 12656793600. Its totient is φ = 951782400.

The previous prime is 3636189133. The next prime is 3636189187. The reversal of 3636189144 is 4419816363.

3636189144 is a `hidden beast` number, since 3 + 636 + 1 + 8 + 9 + 1 + 4 + 4 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 3636189144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2671024 + ... + 2672384.

It is an arithmetic number, because the mean of its divisors is an integer number (39552480).

Almost surely, 2^3636189144 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 3636189144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6328396800).

3636189144 is an abundant number, since it is smaller than the sum of its proper divisors (9020604456).

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

3636189144 is a wasteful number, since it uses less digits than its factorization.

3636189144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1436 (or 1423 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 3636189144 is about 60300.8220839484. The cubic root of 3636189144 is about 1537.7373225569.

The spelling of 3636189144 in words is "three billion, six hundred thirty-six million, one hundred eighty-nine thousand, one hundred forty-four".