38017128912 has 40 divisors (see below), whose sum is σ = 112241048256. Its totient is φ = 10862036736.

The previous prime is 38017128893. The next prime is 38017128913. The reversal of 38017128912 is 21982171083.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38017128913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56572773 + ... + 56573444.

Almost surely, 2^38017128912 is an apocalyptic number.

It is an amenable number.

38017128912 is an abundant number, since it is smaller than the sum of its proper divisors (74223919344).

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

38017128912 is a wasteful number, since it uses less digits than its factorization.

38017128912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113146235 (or 113146229 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 42.

Adding to 38017128912 its reverse (21982171083), we get a palindrome (59999299995).

The spelling of 38017128912 in words is "thirty-eight billion, seventeen million, one hundred twenty-eight thousand, nine hundred twelve".