85811238865156 has 48 divisors (see below), whose sum is σ = 173670435227520. Its totient is φ = 36337966790400.

The previous prime is 85811238865123. The next prime is 85811238865193. The reversal of 85811238865156 is 65156883211858.

It is a junction number, because it is equal to n+sod(n) for n = 85811238865091 and 85811238865100.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 8249955 + ... + 15481738.

It is an arithmetic number, because the mean of its divisors is an integer number (3618134067240).

Almost surely, 2^{85811238865156} is an apocalyptic number.

It is an amenable number.

85811238865156 is an abundant number, since it is smaller than the sum of its proper divisors (87859196362364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85811238865156 is a wasteful number, since it uses less digits than its factorization.

85811238865156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23733244 (or 23733242 counting only the distinct ones).

The product of its digits is 110592000, while the sum is 67.

The spelling of 85811238865156 in words is "eighty-five trillion, eight hundred eleven billion, two hundred thirty-eight million, eight hundred sixty-five thousand, one hundred fifty-six".