79713898906 has 8 divisors (see below), whose sum is σ = 120066993684. Its totient is φ = 39691567680.

The previous prime is 79713898903. The next prime is 79713898931. The reversal of 79713898906 is 60989831797.

It can be written as a sum of positive squares in 2 ways, for example, as 79603543881 + 110355025 = 282141^2 + 10505^2 .

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

It is not an unprimeable number, because it can be changed into a prime (79713898903) by changing a digit.

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, 82690285 + ... + 82691248.

Almost surely, 2^79713898906 is an apocalyptic number.

79713898906 is a deficient number, since it is larger than the sum of its proper divisors (40353094778).

79713898906 is a wasteful number, since it uses less digits than its factorization.

79713898906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165381776.

The product of its (nonzero) digits is 41150592, while the sum is 67.

The spelling of 79713898906 in words is "seventy-nine billion, seven hundred thirteen million, eight hundred ninety-eight thousand, nine hundred six".