85373868859 has 4 divisors (see below), whose sum is σ = 85404156840. Its totient is φ = 85343580880.

The previous prime is 85373868851. The next prime is 85373868871. The reversal of 85373868859 is 95886837358.

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 85373868859 - 2³ = 85373868851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85373868851) 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, 15139762 + ... + 15145399.

It is an arithmetic number, because the mean of its divisors is an integer number (21351039210).

Almost surely, 2^85373868859 is an apocalyptic number.

85373868859 is a deficient number, since it is larger than the sum of its proper divisors (30287981).

85373868859 is a wasteful number, since it uses less digits than its factorization.

85373868859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30287980.

The product of its digits is 348364800, while the sum is 70.

The spelling of 85373868859 in words is "eighty-five billion, three hundred seventy-three million, eight hundred sixty-eight thousand, eight hundred fifty-nine".