85226888905 has 4 divisors (see below), whose sum is σ = 102272266692. Its totient is φ = 68181511120.

The previous prime is 85226888843. The next prime is 85226888959. The reversal of 85226888905 is 50988862258.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11214598201 + 74012290704 = 105899^2 + 272052^2 .

It is not a de Polignac number, because 85226888905 - 2⁹ = 85226888393 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8522688886 + ... + 8522688895.

It is an arithmetic number, because the mean of its divisors is an integer number (25568066673).

Almost surely, 2^85226888905 is an apocalyptic number.

It is an amenable number.

85226888905 is a deficient number, since it is larger than the sum of its proper divisors (17045377787).

85226888905 is a wasteful number, since it uses less digits than its factorization.

85226888905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17045377786.

The product of its (nonzero) digits is 22118400, while the sum is 61.

The spelling of 85226888905 in words is "eighty-five billion, two hundred twenty-six million, eight hundred eighty-eight thousand, nine hundred five".