85345678111 has 4 divisors (see below), whose sum is σ = 89056359792. Its totient is φ = 81634996432.

The previous prime is 85345678109. The next prime is 85345678123. The reversal of 85345678111 is 11187654358.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85345678111 - 2¹ = 85345678109 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85345678141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1855340806 + ... + 1855340851.

It is an arithmetic number, because the mean of its divisors is an integer number (22264089948).

Almost surely, 2^85345678111 is an apocalyptic number.

85345678111 is a deficient number, since it is larger than the sum of its proper divisors (3710681681).

85345678111 is a wasteful number, since it uses less digits than its factorization.

85345678111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3710681680.

The product of its digits is 806400, while the sum is 49.

The spelling of 85345678111 in words is "eighty-five billion, three hundred forty-five million, six hundred seventy-eight thousand, one hundred eleven".