3621909012240 has 320 divisors, whose sum is σ = 11833728307200. Its totient is φ = 914619205632.

The previous prime is 3621909012209. The next prime is 3621909012247. The reversal of 3621909012240 is 422109091263.

It is not an unprimeable number, because it can be changed into a prime (3621909012247) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 226262317 + ... + 226278323.

It is an arithmetic number, because the mean of its divisors is an integer number (36980400960).

Almost surely, 2^{3621909012240} is an apocalyptic number.

3621909012240 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 3621909012240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5916864153600).

3621909012240 is an abundant number, since it is smaller than the sum of its proper divisors (8211819294960).

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

3621909012240 is a wasteful number, since it uses less digits than its factorization.

3621909012240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16454 (or 16448 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The spelling of 3621909012240 in words is "three trillion, six hundred twenty-one billion, nine hundred nine million, twelve thousand, two hundred forty".