851071467122 has 6 divisors (see below), whose sum is σ = 1276609157679. Its totient is φ = 425535081230.

The previous prime is 851071467121. The next prime is 851071467149. The reversal of 851071467122 is 221764170158.

It can be written as a sum of positive squares in only one way, i.e., 425535733561 + 425535733561 = 652331^2 + 652331^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=652331.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (851071467121) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 978497 + ... + 1630827.

Almost surely, 2^851071467122 is an apocalyptic number.

851071467122 is a deficient number, since it is larger than the sum of its proper divisors (425537690557).

851071467122 is an frugal number, since it uses more digits than its factorization.

851071467122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304664 (or 652333 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 44.

The spelling of 851071467122 in words is "eight hundred fifty-one billion, seventy-one million, four hundred sixty-seven thousand, one hundred twenty-two".