85669591259 has 4 divisors (see below), whose sum is σ = 97908104304. Its totient is φ = 73431078216.

The previous prime is 85669591237. The next prime is 85669591261. The reversal of 85669591259 is 95219596658.

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

It is a cyclic number.

It is not a de Polignac number, because 85669591259 - 2⁸ = 85669591003 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85669591195 and 85669591204.

It is not an unprimeable number, because it can be changed into a prime (85669591459) 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, 6119256512 + ... + 6119256525.

It is an arithmetic number, because the mean of its divisors is an integer number (24477026076).

Almost surely, 2^85669591259 is an apocalyptic number.

85669591259 is a deficient number, since it is larger than the sum of its proper divisors (12238513045).

85669591259 is a wasteful number, since it uses less digits than its factorization.

85669591259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12238513044.

The product of its digits is 52488000, while the sum is 65.

The spelling of 85669591259 in words is "eighty-five billion, six hundred sixty-nine million, five hundred ninety-one thousand, two hundred fifty-nine".