85321884777 has 8 divisors (see below), whose sum is σ = 115364802240. Its totient is φ = 56080111920.

The previous prime is 85321884773. The next prime is 85321884787. The reversal of 85321884777 is 77748812358.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85321884777 - 2² = 85321884773 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85321884777.

It is not an unprimeable number, because it can be changed into a prime (85321884773) by changing a digit.

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, 200285902 + ... + 200286327.

It is an arithmetic number, because the mean of its divisors is an integer number (14420600280).

Almost surely, 2^85321884777 is an apocalyptic number.

It is an amenable number.

85321884777 is a deficient number, since it is larger than the sum of its proper divisors (30042917463).

85321884777 is a wasteful number, since it uses less digits than its factorization.

85321884777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400572303.

The product of its digits is 21073920, while the sum is 60.

The spelling of 85321884777 in words is "eighty-five billion, three hundred twenty-one million, eight hundred eighty-four thousand, seven hundred seventy-seven".