85943487679 has 16 divisors (see below), whose sum is σ = 99460827648. Its totient is φ = 72740200032.

The previous prime is 85943487677. The next prime is 85943487713. The reversal of 85943487679 is 97678434958.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 85943487679 - 2¹ = 85943487677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85943487673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78429 + ... + 421945.

It is an arithmetic number, because the mean of its divisors is an integer number (6216301728).

Almost surely, 2^85943487679 is an apocalyptic number.

85943487679 is a deficient number, since it is larger than the sum of its proper divisors (13517339969).

85943487679 is a wasteful number, since it uses less digits than its factorization.

85943487679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343974.

The product of its digits is 365783040, while the sum is 70.

The spelling of 85943487679 in words is "eighty-five billion, nine hundred forty-three million, four hundred eighty-seven thousand, six hundred seventy-nine".