3636859039944 has 192 divisors, whose sum is σ = 10085336775360. Its totient is φ = 1091812700160.

The previous prime is 3636859039907. The next prime is 3636859040027. The reversal of 3636859039944 is 4499309586363.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 166199884 + ... + 166221764.

It is an arithmetic number, because the mean of its divisors is an integer number (52527795705).

Almost surely, 2^{3636859039944} 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 3636859039944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5042668387680).

3636859039944 is an abundant number, since it is smaller than the sum of its proper divisors (6448477735416).

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

3636859039944 is a wasteful number, since it uses less digits than its factorization.

3636859039944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22912 (or 22895 counting only the distinct ones).

The product of its (nonzero) digits is 453496320, while the sum is 69.

The spelling of 3636859039944 in words is "three trillion, six hundred thirty-six billion, eight hundred fifty-nine million, thirty-nine thousand, nine hundred forty-four".