85169922807 has 4 divisors (see below), whose sum is σ = 113559897080. Its totient is φ = 56779948536.

The previous prime is 85169922791. The next prime is 85169922821. The reversal of 85169922807 is 70822996158.

It is a happy number.

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

It is not a de Polignac number, because 85169922807 - 2⁴ = 85169922791 is a prime.

It is a super-3 number, since 3×85169922807³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85169922407) 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, 14194987132 + ... + 14194987137.

It is an arithmetic number, because the mean of its divisors is an integer number (28389974270).

Almost surely, 2^85169922807 is an apocalyptic number.

85169922807 is a deficient number, since it is larger than the sum of its proper divisors (28389974273).

85169922807 is a wasteful number, since it uses less digits than its factorization.

85169922807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28389974272.

The product of its (nonzero) digits is 4354560, while the sum is 57.

The spelling of 85169922807 in words is "eighty-five billion, one hundred sixty-nine million, nine hundred twenty-two thousand, eight hundred seven".