84008884079 has 4 divisors (see below), whose sum is σ = 84613264680. Its totient is φ = 83404503480.

The previous prime is 84008884051. The next prime is 84008884111. The reversal of 84008884079 is 97048880048.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84008884079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84008884039) 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 3 ways as a sum of consecutive naturals, for example, 302190092 + ... + 302190369.

It is an arithmetic number, because the mean of its divisors is an integer number (21153316170).

Almost surely, 2^84008884079 is an apocalyptic number.

84008884079 is a deficient number, since it is larger than the sum of its proper divisors (604380601).

84008884079 is a wasteful number, since it uses less digits than its factorization.

84008884079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604380600.

The product of its (nonzero) digits is 4128768, while the sum is 56.

The spelling of 84008884079 in words is "eighty-four billion, eight million, eight hundred eighty-four thousand, seventy-nine".