785686105122 has 16 divisors (see below), whose sum is σ = 1572424721280. Its totient is φ = 261719949872.

The previous prime is 785686105093. The next prime is 785686105133. The reversal of 785686105122 is 221501686587.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43844922 + ... + 43862837.

It is an arithmetic number, because the mean of its divisors is an integer number (98276545080).

Almost surely, 2^785686105122 is an apocalyptic number.

785686105122 is an abundant number, since it is smaller than the sum of its proper divisors (786738616158).

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

785686105122 is a wasteful number, since it uses less digits than its factorization.

785686105122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87709257.

The product of its (nonzero) digits is 1612800, while the sum is 51.

The spelling of 785686105122 in words is "seven hundred eighty-five billion, six hundred eighty-six million, one hundred five thousand, one hundred twenty-two".