85184578874 has 32 divisors (see below), whose sum is σ = 131606678016. Its totient is φ = 41329496880.

The previous prime is 85184578837. The next prime is 85184578909. The reversal of 85184578874 is 47887548158.

It is a Smith number, since the sum of its digits (65) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 85184578874.

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, 9580859 + ... + 9589745.

It is an arithmetic number, because the mean of its divisors is an integer number (4112708688).

Almost surely, 2^85184578874 is an apocalyptic number.

85184578874 is a deficient number, since it is larger than the sum of its proper divisors (46422099142).

85184578874 is a wasteful number, since it uses less digits than its factorization.

85184578874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9650.

The product of its digits is 80281600, while the sum is 65.

The spelling of 85184578874 in words is "eighty-five billion, one hundred eighty-four million, five hundred seventy-eight thousand, eight hundred seventy-four".