854772083017 has 4 divisors (see below), whose sum is σ = 855495853956. Its totient is φ = 854048312080.

The previous prime is 854772082981. The next prime is 854772083027. The reversal of 854772083017 is 710380277458.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 453489109056 + 401282973961 = 673416^2 + 633469^2 .

It is a cyclic number.

It is not a de Polignac number, because 854772083017 - 2²³ = 854763694409 is a prime.

It is a super-2 number, since 2×854772083017² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (854772083027) 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 3 ways as a sum of consecutive naturals, for example, 361883698 + ... + 361886059.

It is an arithmetic number, because the mean of its divisors is an integer number (213873963489).

Almost surely, 2^854772083017 is an apocalyptic number.

It is an amenable number.

854772083017 is a deficient number, since it is larger than the sum of its proper divisors (723770939).

854772083017 is a wasteful number, since it uses less digits than its factorization.

854772083017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723770938.

The product of its (nonzero) digits is 2634240, while the sum is 52.

The spelling of 854772083017 in words is "eight hundred fifty-four billion, seven hundred seventy-two million, eighty-three thousand, seventeen".