3621587259136 has 648 divisors, whose sum is σ = 10046084052480. Its totient is φ = 1293304320000.

The previous prime is 3621587259131. The next prime is 3621587259139. The reversal of 3621587259136 is 6319527851263.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3621587259131) by changing a digit.

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 71 ways as a sum of consecutive naturals, for example, 893996311 + ... + 894000361.

Almost surely, 2^{3621587259136} 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 3621587259136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5023042026240).

3621587259136 is an abundant number, since it is smaller than the sum of its proper divisors (6424496793344).

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

3621587259136 is a wasteful number, since it uses less digits than its factorization.

3621587259136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4153 (or 4121 counting only the distinct ones).

The product of its digits is 16329600, while the sum is 58.

The spelling of 3621587259136 in words is "three trillion, six hundred twenty-one billion, five hundred eighty-seven million, two hundred fifty-nine thousand, one hundred thirty-six".