865371842226 has 24 divisors (see below), whose sum is σ = 1901380388544. Its totient is φ = 284394501720.

The previous prime is 865371842191. The next prime is 865371842239. The reversal of 865371842226 is 622248173568.

865371842226 is a `hidden beast` number, since 8 + 6 + 5 + 371 + 8 + 42 + 226 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 338563606 + ... + 338566161.

It is an arithmetic number, because the mean of its divisors is an integer number (79224182856).

Almost surely, 2^865371842226 is an apocalyptic number.

865371842226 is an abundant number, since it is smaller than the sum of its proper divisors (1036008546318).

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

865371842226 is a wasteful number, since it uses less digits than its factorization.

865371842226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677129846 (or 677129843 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 54.

The spelling of 865371842226 in words is "eight hundred sixty-five billion, three hundred seventy-one million, eight hundred forty-two thousand, two hundred twenty-six".