85678775143 has 16 divisors (see below), whose sum is σ = 94535201376. Its totient is φ = 77146652160.

The previous prime is 85678775141. The next prime is 85678775179. The reversal of 85678775143 is 34157787658.

It is a cyclic number.

It is not a de Polignac number, because 85678775143 - 2¹ = 85678775141 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 (85678775141) 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 15 ways as a sum of consecutive naturals, for example, 5408971 + ... + 5424787.

It is an arithmetic number, because the mean of its divisors is an integer number (5908450086).

Almost surely, 2^85678775143 is an apocalyptic number.

85678775143 is a deficient number, since it is larger than the sum of its proper divisors (8856426233).

85678775143 is a wasteful number, since it uses less digits than its factorization.

85678775143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26034.

The product of its digits is 39513600, while the sum is 61.

The spelling of 85678775143 in words is "eighty-five billion, six hundred seventy-eight million, seven hundred seventy-five thousand, one hundred forty-three".