85592728689 has 64 divisors (see below), whose sum is σ = 128830141440. Its totient is φ = 50196142080.

The previous prime is 85592728651. The next prime is 85592728729. The reversal of 85592728689 is 98682729558.

It is not a de Polignac number, because 85592728689 - 2⁸ = 85592728433 is a prime.

It is a super-2 number, since 2×85592728689² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85592728489) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 59896227 + ... + 59897655.

It is an arithmetic number, because the mean of its divisors is an integer number (2012970960).

Almost surely, 2^85592728689 is an apocalyptic number.

It is an amenable number.

85592728689 is a deficient number, since it is larger than the sum of its proper divisors (43237412751).

85592728689 is a wasteful number, since it uses less digits than its factorization.

85592728689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2330.

The product of its digits is 174182400, while the sum is 69.

The spelling of 85592728689 in words is "eighty-five billion, five hundred ninety-two million, seven hundred twenty-eight thousand, six hundred eighty-nine".