239019641838 has 12 divisors (see below), whose sum is σ = 517875890688. Its totient is φ = 79673213940.

The previous prime is 239019641813. The next prime is 239019641911. The reversal of 239019641838 is 838146910932.

239019641838 is a `hidden beast` number, since 2 + 3 + 9 + 0 + 196 + 418 + 38 = 666.

It is a Curzon number.

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, 6639434478 + ... + 6639434513.

It is an arithmetic number, because the mean of its divisors is an integer number (43156324224).

Almost surely, 2^239019641838 is an apocalyptic number.

239019641838 is an abundant number, since it is smaller than the sum of its proper divisors (278856248850).

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

239019641838 is a wasteful number, since it uses less digits than its factorization.

239019641838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13278868999 (or 13278868996 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The spelling of 239019641838 in words is "two hundred thirty-nine billion, nineteen million, six hundred forty-one thousand, eight hundred thirty-eight".