85935163609 has 3 divisors (see below), whose sum is σ = 85935456757. Its totient is φ = 85934870462.

The previous prime is 85935163597. The next prime is 85935163651. The reversal of 85935163609 is 90636153958.

It is a happy number.

The square root of 85935163609 is 293147.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 85935163609 - 2⁵ = 85935163577 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85935163609.

It is not an unprimeable number, because it can be changed into a prime (85935160609) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 146574 + ... + 439720.

Almost surely, 2^85935163609 is an apocalyptic number.

85935163609 is the 293147-th square number.

85935163609 is the 146574-th centered octagonal number.

It is an amenable number.

85935163609 is a deficient number, since it is larger than the sum of its proper divisors (293148).

85935163609 is an frugal number, since it uses more digits than its factorization.

85935163609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586294 (or 293147 counting only the distinct ones).

The product of its (nonzero) digits is 5248800, while the sum is 55.

The spelling of 85935163609 in words is "eighty-five billion, nine hundred thirty-five million, one hundred sixty-three thousand, six hundred nine".