85868597798 has 4 divisors (see below), whose sum is σ = 128802896700. Its totient is φ = 42934298898.

The previous prime is 85868597797. The next prime is 85868597833. The reversal of 85868597798 is 89779586858.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85868597797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21467149448 + ... + 21467149451.

It is an arithmetic number, because the mean of its divisors is an integer number (32200724175).

Almost surely, 2^85868597798 is an apocalyptic number.

85868597798 is a deficient number, since it is larger than the sum of its proper divisors (42934298902).

85868597798 is a wasteful number, since it uses less digits than its factorization.

85868597798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42934298901.

The product of its digits is 2438553600, while the sum is 80.

The spelling of 85868597798 in words is "eighty-five billion, eight hundred sixty-eight million, five hundred ninety-seven thousand, seven hundred ninety-eight".