78839075404822 has 8 divisors (see below), whose sum is σ = 118259623068336. Its totient is φ = 39419201048712.

The previous prime is 78839075404813. The next prime is 78839075404879. The reversal of 78839075404822 is 22840457093887.

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

It is a congruent number.

It is an unprimeable number.

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, 168034018 + ... + 168502549.

It is an arithmetic number, because the mean of its divisors is an integer number (14782452883542).

Almost surely, 2^{78839075404822} is an apocalyptic number.

78839075404822 is a deficient number, since it is larger than the sum of its proper divisors (39420547663514).

78839075404822 is a wasteful number, since it uses less digits than its factorization.

78839075404822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336653702.

The product of its (nonzero) digits is 216760320, while the sum is 67.

The spelling of 78839075404822 in words is "seventy-eight trillion, eight hundred thirty-nine billion, seventy-five million, four hundred four thousand, eight hundred twenty-two".