3639636000 has 1152 divisors, whose sum is σ = 17514911232. Its totient is φ = 691200000.

The previous prime is 3639635959. The next prime is 3639636031. The reversal of 3639636000 is 6369363.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 36035950 + ... + 36036050.

It is an arithmetic number, because the mean of its divisors is an integer number (15203916).

Almost surely, 2^3639636000 is an apocalyptic number.

3639636000 is a gapful number since it is divisible by the number (30) 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 3639636000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8757455616).

3639636000 is an abundant number, since it is smaller than the sum of its proper divisors (13875275232).

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

3639636000 is a wasteful number, since it uses less digits than its factorization.

3639636000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 36.

The square root of 3639636000 is about 60329.3958199483. The cubic root of 3639636000 is about 1538.2230586757.

It can be divided in two parts, 363963 and 6000, that added together give a palindrome (369963).

The spelling of 3639636000 in words is "three billion, six hundred thirty-nine million, six hundred thirty-six thousand".