85644343127 has 8 divisors (see below), whose sum is σ = 98141663136. Its totient is φ = 73212626592.

The previous prime is 85644343117. The next prime is 85644343151. The reversal of 85644343127 is 72134344658.

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

It is not a de Polignac number, because 85644343127 - 2²⁶ = 85577234263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85644343117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16398068 + ... + 16403289.

It is an arithmetic number, because the mean of its divisors is an integer number (12267707892).

Almost surely, 2^85644343127 is an apocalyptic number.

85644343127 is a deficient number, since it is larger than the sum of its proper divisors (12497320009).

85644343127 is a wasteful number, since it uses less digits than its factorization.

85644343127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32801737.

The product of its digits is 1935360, while the sum is 47.

The spelling of 85644343127 in words is "eighty-five billion, six hundred forty-four million, three hundred forty-three thousand, one hundred twenty-seven".