85646542807 has 8 divisors (see below), whose sum is σ = 97917032736. Its totient is φ = 73384870272.

The previous prime is 85646542789. The next prime is 85646542823. The reversal of 85646542807 is 70824564658.

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

It is not a de Polignac number, because 85646542807 - 2¹⁹ = 85646018519 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 (85646542847) 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, 2183518 + ... + 2222395.

It is an arithmetic number, because the mean of its divisors is an integer number (12239629092).

Almost surely, 2^85646542807 is an apocalyptic number.

85646542807 is a deficient number, since it is larger than the sum of its proper divisors (12270489929).

85646542807 is a wasteful number, since it uses less digits than its factorization.

85646542807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4408697.

The product of its (nonzero) digits is 12902400, while the sum is 55.

The spelling of 85646542807 in words is "eighty-five billion, six hundred forty-six million, five hundred forty-two thousand, eight hundred seven".