85364564859 has 24 divisors (see below), whose sum is σ = 141524109792. Its totient is φ = 48570387840.

The previous prime is 85364564821. The next prime is 85364564863. The reversal of 85364564859 is 95846546358.

It is a happy number.

85364564859 is a `hidden beast` number, since 8 + 5 + 3 + 64 + 564 + 8 + 5 + 9 = 666.

It is not a de Polignac number, because 85364564859 - 2⁸ = 85364564603 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 85364564796 and 85364564805.

It is not an unprimeable number, because it can be changed into a prime (85364564819) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2893032 + ... + 2922389.

It is an arithmetic number, because the mean of its divisors is an integer number (5896837908).

Almost surely, 2^85364564859 is an apocalyptic number.

85364564859 is a deficient number, since it is larger than the sum of its proper divisors (56159544933).

85364564859 is a wasteful number, since it uses less digits than its factorization.

85364564859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5815667 (or 5815664 counting only the distinct ones).

The product of its digits is 124416000, while the sum is 63.

The spelling of 85364564859 in words is "eighty-five billion, three hundred sixty-four million, five hundred sixty-four thousand, eight hundred fifty-nine".