84445396879 has 8 divisors (see below), whose sum is σ = 89433726480. Its totient is φ = 79459395456.

The previous prime is 84445396823. The next prime is 84445396933. The reversal of 84445396879 is 97869354448.

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

It is a cyclic number.

It is not a de Polignac number, because 84445396879 - 2²¹ = 84443299727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84445391879) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 507084 + ... + 652705.

It is an arithmetic number, because the mean of its divisors is an integer number (11179215810).

Almost surely, 2^84445396879 is an apocalyptic number.

84445396879 is a deficient number, since it is larger than the sum of its proper divisors (4988329601).

84445396879 is a wasteful number, since it uses less digits than its factorization.

84445396879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164089.

The product of its digits is 209018880, while the sum is 67.

The spelling of 84445396879 in words is "eighty-four billion, four hundred forty-five million, three hundred ninety-six thousand, eight hundred seventy-nine".