3838278828728 has 24 divisors (see below), whose sum is σ = 7436415617640. Its totient is φ = 1857231687600.

The previous prime is 3838278828719. The next prime is 3838278828733. The reversal of 3838278828728 is 8278288728383.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 249620228 + ... + 249635603.

It is an arithmetic number, because the mean of its divisors is an integer number (309850650735).

Almost surely, 2^{3838278828728} is an apocalyptic number.

It is an amenable number.

3838278828728 is a deficient number, since it is larger than the sum of its proper divisors (3598136788912).

3838278828728 is a wasteful number, since it uses less digits than its factorization.

3838278828728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499255899 (or 499255864 counting only the distinct ones).

The product of its digits is 924844032, while the sum is 74.

The spelling of 3838278828728 in words is "three trillion, eight hundred thirty-eight billion, two hundred seventy-eight million, eight hundred twenty-eight thousand, seven hundred twenty-eight".