3838278643244 has 12 divisors (see below), whose sum is σ = 6783492454368. Its totient is φ = 1900137942000.

The previous prime is 3838278643183. The next prime is 3838278643253. The reversal of 3838278643244 is 4423468728383.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4750344452 + ... + 4750345259.

It is an arithmetic number, because the mean of its divisors is an integer number (565291037864).

Almost surely, 2^{3838278643244} is an apocalyptic number.

It is an amenable number.

3838278643244 is a deficient number, since it is larger than the sum of its proper divisors (2945213811124).

3838278643244 is a wasteful number, since it uses less digits than its factorization.

3838278643244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9500689816 (or 9500689814 counting only the distinct ones).

The product of its digits is 148635648, while the sum is 62.

The spelling of 3838278643244 in words is "three trillion, eight hundred thirty-eight billion, two hundred seventy-eight million, six hundred forty-three thousand, two hundred forty-four".