85795627909 has 4 divisors (see below), whose sum is σ = 85828364460. Its totient is φ = 85762891360.

The previous prime is 85795627903. The next prime is 85795627969. The reversal of 85795627909 is 90972659758.

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 71621534884 + 14174093025 = 267622^2 + 119055^2 .

It is a cyclic number.

It is not a de Polignac number, because 85795627909 - 2²³ = 85787239301 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 (85795627903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16364344 + ... + 16369585.

It is an arithmetic number, because the mean of its divisors is an integer number (21457091115).

Almost surely, 2^85795627909 is an apocalyptic number.

It is an amenable number.

85795627909 is a deficient number, since it is larger than the sum of its proper divisors (32736551).

85795627909 is a wasteful number, since it uses less digits than its factorization.

85795627909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32736550.

The product of its (nonzero) digits is 85730400, while the sum is 67.

The spelling of 85795627909 in words is "eighty-five billion, seven hundred ninety-five million, six hundred twenty-seven thousand, nine hundred nine".