79816446538 has 8 divisors (see below), whose sum is σ = 119804544000. Its totient is φ = 39881598540.

The previous prime is 79816446527. The next prime is 79816446553. The reversal of 79816446538 is 83564461897.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13308618 + ... + 13314613.

It is an arithmetic number, because the mean of its divisors is an integer number (14975568000).

Almost surely, 2^79816446538 is an apocalyptic number.

79816446538 is a deficient number, since it is larger than the sum of its proper divisors (39988097462).

79816446538 is a wasteful number, since it uses less digits than its factorization.

79816446538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26624732.

The product of its digits is 34836480, while the sum is 61.

The spelling of 79816446538 in words is "seventy-nine billion, eight hundred sixteen million, four hundred forty-six thousand, five hundred thirty-eight".