3638798380280 has 64 divisors (see below), whose sum is σ = 9372174690240. Its totient is φ = 1245552740352.

The previous prime is 3638798380219. The next prime is 3638798380291. The reversal of 3638798380280 is 820838978363.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10428449 + ... + 10771728.

It is an arithmetic number, because the mean of its divisors is an integer number (146440229535).

Almost surely, 2^{3638798380280} is an apocalyptic number.

It is an amenable number.

3638798380280 is an abundant number, since it is smaller than the sum of its proper divisors (5733376309960).

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

3638798380280 is a wasteful number, since it uses less digits than its factorization.

3638798380280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21200808 (or 21200804 counting only the distinct ones).

The product of its (nonzero) digits is 83607552, while the sum is 65.

The spelling of 3638798380280 in words is "three trillion, six hundred thirty-eight billion, seven hundred ninety-eight million, three hundred eighty thousand, two hundred eighty".