8231225786838 has 12 divisors (see below), whose sum is σ = 17834322538188. Its totient is φ = 2743741928940.

The previous prime is 8231225786761. The next prime is 8231225786939. The reversal of 8231225786838 is 8386875221328.

It is a happy number.

8231225786838 is a `hidden beast` number, since 8 + 2 + 3 + 1 + 22 + 578 + 6 + 8 + 38 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 228645160728 + ... + 228645160763.

It is an arithmetic number, because the mean of its divisors is an integer number (1486193544849).

Almost surely, 2^{8231225786838} is an apocalyptic number.

8231225786838 is an abundant number, since it is smaller than the sum of its proper divisors (9603096751350).

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

8231225786838 is a wasteful number, since it uses less digits than its factorization.

8231225786838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457290321499 (or 457290321496 counting only the distinct ones).

The product of its digits is 61931520, while the sum is 63.

The spelling of 8231225786838 in words is "eight trillion, two hundred thirty-one billion, two hundred twenty-five million, seven hundred eighty-six thousand, eight hundred thirty-eight".