85367691705 has 16 divisors (see below), whose sum is σ = 138512087424. Its totient is φ = 44888175360.

The previous prime is 85367691697. The next prime is 85367691709. The reversal of 85367691705 is 50719676358.

It is not a de Polignac number, because 85367691705 - 2³ = 85367691697 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (85367691709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40077664 + ... + 40079793.

It is an arithmetic number, because the mean of its divisors is an integer number (8657005464).

Almost surely, 2^85367691705 is an apocalyptic number.

It is an amenable number.

85367691705 is a deficient number, since it is larger than the sum of its proper divisors (53144395719).

85367691705 is a wasteful number, since it uses less digits than its factorization.

85367691705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80157536.

The product of its (nonzero) digits is 9525600, while the sum is 57.

The spelling of 85367691705 in words is "eighty-five billion, three hundred sixty-seven million, six hundred ninety-one thousand, seven hundred five".