78882164999 has 24 divisors (see below), whose sum is σ = 87009987456. Its totient is φ = 71459550800.

The previous prime is 78882164989. The next prime is 78882165017. The reversal of 78882164999 is 99946128887.

It is not a de Polignac number, because 78882164999 - 2²⁰ = 78881116423 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 (78882164909) 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 23 ways as a sum of consecutive naturals, for example, 80245862 + ... + 80246844.

It is an arithmetic number, because the mean of its divisors is an integer number (3625416144).

Almost surely, 2^78882164999 is an apocalyptic number.

78882164999 is a deficient number, since it is larger than the sum of its proper divisors (8127822457).

78882164999 is a wasteful number, since it uses less digits than its factorization.

78882164999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2659 (or 2648 counting only the distinct ones).

The product of its digits is 125411328, while the sum is 71.

The spelling of 78882164999 in words is "seventy-eight billion, eight hundred eighty-two million, one hundred sixty-four thousand, nine hundred ninety-nine".