851273733105 has 12 divisors (see below), whose sum is σ = 1475541137460. Its totient is φ = 454012657632.

The previous prime is 851273733073. The next prime is 851273733113. The reversal of 851273733105 is 501337372158.

It can be written as a sum of positive squares in 2 ways, for example, as 117825368049 + 733448365056 = 343257^2 + 856416^2 .

It is not a de Polignac number, because 851273733105 - 2⁵ = 851273733073 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 18917194069 = 851273733105 / (8 + 5 + 1 + 2 + 7 + 3 + 7 + 3 + 3 + 1 + 0 + 5).

It is a Curzon 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 11 ways as a sum of consecutive naturals, for example, 9458596990 + ... + 9458597079.

It is an arithmetic number, because the mean of its divisors is an integer number (122961761455).

Almost surely, 2^851273733105 is an apocalyptic number.

It is an amenable number.

851273733105 is a deficient number, since it is larger than the sum of its proper divisors (624267404355).

851273733105 is a wasteful number, since it uses less digits than its factorization.

851273733105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18917194080 (or 18917194077 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 45.

The spelling of 851273733105 in words is "eight hundred fifty-one billion, two hundred seventy-three million, seven hundred thirty-three thousand, one hundred five".