85727226357 has 24 divisors (see below), whose sum is σ = 131501364696. Its totient is φ = 53629986816.

The previous prime is 85727226349. The next prime is 85727226359. The reversal of 85727226357 is 75362272758.

85727226357 is a `hidden beast` number, since 8 + 572 + 7 + 2 + 2 + 63 + 5 + 7 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2251882116 + 83475344241 = 47454^2 + 288921^2 .

It is not a de Polignac number, because 85727226357 - 2³ = 85727226349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85727226359) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 779758 + ... + 882879.

It is an arithmetic number, because the mean of its divisors is an integer number (5479223529).

Almost surely, 2^85727226357 is an apocalyptic number.

It is an amenable number.

85727226357 is a deficient number, since it is larger than the sum of its proper divisors (45774138339).

85727226357 is a wasteful number, since it uses less digits than its factorization.

85727226357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662997 (or 1662994 counting only the distinct ones).

The product of its digits is 9878400, while the sum is 54.

The spelling of 85727226357 in words is "eighty-five billion, seven hundred twenty-seven million, two hundred twenty-six thousand, three hundred fifty-seven".