38785763856 has 160 divisors (see below), whose sum is σ = 117787183360. Its totient is φ = 10765467648.

The previous prime is 38785763843. The next prime is 38785763873. The reversal of 38785763856 is 65836758783.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors.

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, 9558180 + ... + 9562236.

It is an arithmetic number, because the mean of its divisors is an integer number (736169896).

Almost surely, 2^38785763856 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 38785763856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58893591680).

38785763856 is an abundant number, since it is smaller than the sum of its proper divisors (79001419504).

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

38785763856 is a wasteful number, since it uses less digits than its factorization.

38785763856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4881 (or 4875 counting only the distinct ones).

The product of its digits is 203212800, while the sum is 66.

The spelling of 38785763856 in words is "thirty-eight billion, seven hundred eighty-five million, seven hundred sixty-three thousand, eight hundred fifty-six".