3243659884920 has 384 divisors, whose sum is σ = 12977941616640. Its totient is φ = 684202429440.

The previous prime is 3243659884877. The next prime is 3243659884937. The reversal of 3243659884920 is 294889563423.

It is a happy number.

3243659884920 is a `hidden beast` number, since 3 + 2 + 4 + 3 + 65 + 9 + 88 + 492 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 159563797 + ... + 159584123.

It is an arithmetic number, because the mean of its divisors is an integer number (33796722960).

Almost surely, 2^{3243659884920} is an apocalyptic number.

3243659884920 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 3243659884920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6488970808320).

3243659884920 is an abundant number, since it is smaller than the sum of its proper divisors (9734281731720).

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

3243659884920 is a wasteful number, since it uses less digits than its factorization.

3243659884920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25235 (or 25228 counting only the distinct ones).

The product of its (nonzero) digits is 89579520, while the sum is 63.

The spelling of 3243659884920 in words is "three trillion, two hundred forty-three billion, six hundred fifty-nine million, eight hundred eighty-four thousand, nine hundred twenty".