79836626838 has 8 divisors (see below), whose sum is σ = 159673253688. Its totient is φ = 26612208944.

The previous prime is 79836626819. The next prime is 79836626861. The reversal of 79836626838 is 83862663897.

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

79836626838 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6653052231 + ... + 6653052242.

It is an arithmetic number, because the mean of its divisors is an integer number (19959156711).

Almost surely, 2^79836626838 is an apocalyptic number.

79836626838 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79836626838 is a wasteful number, since it uses less digits than its factorization.

79836626838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13306104478.

The product of its digits is 125411328, while the sum is 66.

The spelling of 79836626838 in words is "seventy-nine billion, eight hundred thirty-six million, six hundred twenty-six thousand, eight hundred thirty-eight".