38743723221888 has 256 divisors, whose sum is σ = 111100548283200. Its totient is φ = 11917193773056.

The previous prime is 38743723221851. The next prime is 38743723221937. The reversal of 38743723221888 is 88812232734783.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 502676218 + ... + 502753286.

Almost surely, 2^{38743723221888} 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 38743723221888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55550274141600).

38743723221888 is an abundant number, since it is smaller than the sum of its proper divisors (72356825061312).

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

38743723221888 is a wasteful number, since it uses less digits than its factorization.

38743723221888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78609 (or 78597 counting only the distinct ones).

The product of its digits is 173408256, while the sum is 66.

The spelling of 38743723221888 in words is "thirty-eight trillion, seven hundred forty-three billion, seven hundred twenty-three million, two hundred twenty-one thousand, eight hundred eighty-eight".