851118051 has 32 divisors (see below), whose sum is σ = 1343377408. Its totient is φ = 469048320.

The previous prime is 851118019. The next prime is 851118077. The reversal of 851118051 is 150811158.

It is not a de Polignac number, because 851118051 - 2⁵ = 851118019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (851118451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 201675 + ... + 205851.

It is an arithmetic number, because the mean of its divisors is an integer number (41980544).

Almost surely, 2^851118051 is an apocalyptic number.

851118051 is a deficient number, since it is larger than the sum of its proper divisors (492259357).

851118051 is a wasteful number, since it uses less digits than its factorization.

851118051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4531.

The product of its (nonzero) digits is 1600, while the sum is 30.

The square root of 851118051 is about 29173.9275895447. The cubic root of 851118051 is about 947.6833862752.

It can be divided in two parts, 8511 and 18051, that added together give a palindrome (26562).

The spelling of 851118051 in words is "eight hundred fifty-one million, one hundred eighteen thousand, fifty-one".