85209117433 has 8 divisors (see below), whose sum is σ = 92957518080. Its totient is φ = 77461069680.

The previous prime is 85209117401. The next prime is 85209117449. The reversal of 85209117433 is 33471190258.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85209117433 - 2⁵ = 85209117401 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 85209117433.

It is not an unprimeable number, because it can be changed into a prime (85209117463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 857163 + ... + 951391.

It is an arithmetic number, because the mean of its divisors is an integer number (11619689760).

Almost surely, 2^85209117433 is an apocalyptic number.

It is an amenable number.

85209117433 is a deficient number, since it is larger than the sum of its proper divisors (7748400647).

85209117433 is a wasteful number, since it uses less digits than its factorization.

85209117433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176447.

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 85209117433 in words is "eighty-five billion, two hundred nine million, one hundred seventeen thousand, four hundred thirty-three".