85867586158851 has 24 divisors (see below), whose sum is σ = 142769447824640. Its totient is φ = 48714190703856.

The previous prime is 85867586158801. The next prime is 85867586158859. The reversal of 85867586158851 is 15885168576858.

It is not a de Polignac number, because 85867586158851 - 2¹⁰ = 85867586157827 is a prime.

It is a Smith number, since the sum of its digits (81) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (85867586158859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4902788215 + ... + 4902805728.

Almost surely, 2^{85867586158851} is an apocalyptic number.

85867586158851 is a deficient number, since it is larger than the sum of its proper divisors (56901861665789).

85867586158851 is a wasteful number, since it uses less digits than its factorization.

85867586158851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9805594095 (or 9805594092 counting only the distinct ones).

The product of its digits is 5160960000, while the sum is 81.

The spelling of 85867586158851 in words is "eighty-five trillion, eight hundred sixty-seven billion, five hundred eighty-six million, one hundred fifty-eight thousand, eight hundred fifty-one".