38159794512 has 120 divisors (see below), whose sum is σ = 122828674176. Its totient is φ = 10833308928.

The previous prime is 38159794511. The next prime is 38159794529. The reversal of 38159794512 is 21549795183.

It is a happy number.

38159794512 is a `hidden beast` number, since 3 + 8 + 1 + 59 + 79 + 4 + 512 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38159794511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37693 + ... + 278819.

Almost surely, 2^38159794512 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 38159794512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61414337088).

38159794512 is an abundant number, since it is smaller than the sum of its proper divisors (84668879664).

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

38159794512 is a wasteful number, since it uses less digits than its factorization.

38159794512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241305 (or 241296 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 54.

The spelling of 38159794512 in words is "thirty-eight billion, one hundred fifty-nine million, seven hundred ninety-four thousand, five hundred twelve".