85173481758 has 16 divisors (see below), whose sum is σ = 170702599680. Its totient is φ = 28331887896.

The previous prime is 85173481747. The next prime is 85173481819. The reversal of 85173481758 is 85718437158.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 85173481698 and 85173481707.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 14815060 + ... + 14820807.

It is an arithmetic number, because the mean of its divisors is an integer number (10668912480).

Almost surely, 2^85173481758 is an apocalyptic number.

85173481758 is an abundant number, since it is smaller than the sum of its proper divisors (85529117922).

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

85173481758 is a wasteful number, since it uses less digits than its factorization.

85173481758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29636351.

The product of its digits is 7526400, while the sum is 57.

The spelling of 85173481758 in words is "eighty-five billion, one hundred seventy-three million, four hundred eighty-one thousand, seven hundred fifty-eight".