38519427828 has 144 divisors (see below), whose sum is σ = 111648499200. Its totient is φ = 10283132160.

The previous prime is 38519427803. The next prime is 38519427841. The reversal of 38519427828 is 82872491583.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 492178 + ... + 565046.

It is an arithmetic number, because the mean of its divisors is an integer number (775336800).

Almost surely, 2^38519427828 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 38519427828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55824249600).

38519427828 is an abundant number, since it is smaller than the sum of its proper divisors (73129071372).

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

38519427828 is a wasteful number, since it uses less digits than its factorization.

38519427828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72950 (or 72941 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 57.

The spelling of 38519427828 in words is "thirty-eight billion, five hundred nineteen million, four hundred twenty-seven thousand, eight hundred twenty-eight".