84878564195 has 16 divisors (see below), whose sum is σ = 103439280000. Its totient is φ = 66851111808.

The previous prime is 84878564143. The next prime is 84878564227. The reversal of 84878564195 is 59146587848.

It is a cyclic number.

It is not a de Polignac number, because 84878564195 - 2²⁶ = 84811455331 is a prime.

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 an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170000 + ... + 445709.

It is an arithmetic number, because the mean of its divisors is an integer number (6464955000).

Almost surely, 2^84878564195 is an apocalyptic number.

84878564195 is a deficient number, since it is larger than the sum of its proper divisors (18560715805).

84878564195 is a wasteful number, since it uses less digits than its factorization.

84878564195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616142.

The product of its digits is 77414400, while the sum is 65.

The spelling of 84878564195 in words is "eighty-four billion, eight hundred seventy-eight million, five hundred sixty-four thousand, one hundred ninety-five".