851086110101 has 8 divisors (see below), whose sum is σ = 869042241624. Its totient is φ = 833300179200.

The previous prime is 851086110097. The next prime is 851086110139. The reversal of 851086110101 is 101011680158.

It can be written as a sum of positive squares in 4 ways, for example, as 37254790225 + 813831319876 = 193015^2 + 902126^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 851086110101 - 2² = 851086110097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (851086110151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42540050 + ... + 42560051.

It is an arithmetic number, because the mean of its divisors is an integer number (108630280203).

Almost surely, 2^851086110101 is an apocalyptic number.

It is an amenable number.

851086110101 is a deficient number, since it is larger than the sum of its proper divisors (17956131523).

851086110101 is a wasteful number, since it uses less digits than its factorization.

851086110101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85100311.

The product of its (nonzero) digits is 1920, while the sum is 32.

Adding to 851086110101 its reverse (101011680158), we get a palindrome (952097790259).

The spelling of 851086110101 in words is "eight hundred fifty-one billion, eighty-six million, one hundred ten thousand, one hundred one".