38818726688 has 72 divisors (see below), whose sum is σ = 89323912944. Its totient is φ = 16557609600.

The previous prime is 38818726637. The next prime is 38818726717. The reversal of 38818726688 is 88662781883.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 272183 + ... + 389513.

It is an arithmetic number, because the mean of its divisors is an integer number (1240609902).

Almost surely, 2^38818726688 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 38818726688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44661956472).

38818726688 is an abundant number, since it is smaller than the sum of its proper divisors (50505186256).

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

38818726688 is a wasteful number, since it uses less digits than its factorization.

38818726688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117566 (or 117551 counting only the distinct ones).

The product of its digits is 49545216, while the sum is 65.

The spelling of 38818726688 in words is "thirty-eight billion, eight hundred eighteen million, seven hundred twenty-six thousand, six hundred eighty-eight".