85865325238387 has 4 divisors (see below), whose sum is σ = 90916226723016. Its totient is φ = 80814423753760.

The previous prime is 85865325238373. The next prime is 85865325238403. The reversal of 85865325238387 is 78383252356858.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85865325238387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85865325238327) 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, 2525450742289 + ... + 2525450742322.

It is an arithmetic number, because the mean of its divisors is an integer number (22729056680754).

Almost surely, 2^{85865325238387} is an apocalyptic number.

85865325238387 is a deficient number, since it is larger than the sum of its proper divisors (5050901484629).

85865325238387 is a wasteful number, since it uses less digits than its factorization.

85865325238387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5050901484628.

The product of its digits is 2322432000, while the sum is 73.

The spelling of 85865325238387 in words is "eighty-five trillion, eight hundred sixty-five billion, three hundred twenty-five million, two hundred thirty-eight thousand, three hundred eighty-seven".