79650357799 has 4 divisors (see below), whose sum is σ = 80355228336. Its totient is φ = 78945487264.

The previous prime is 79650357797. The next prime is 79650357821. The reversal of 79650357799 is 99775305697.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99775305697 = 33349 ⋅2991853.

It is a cyclic number.

It is not a de Polignac number, because 79650357799 - 2¹ = 79650357797 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 (79650357797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352435099 + ... + 352435324.

It is an arithmetic number, because the mean of its divisors is an integer number (20088807084).

Almost surely, 2^79650357799 is an apocalyptic number.

79650357799 is a deficient number, since it is larger than the sum of its proper divisors (704870537).

79650357799 is a wasteful number, since it uses less digits than its factorization.

79650357799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704870536.

The product of its (nonzero) digits is 112521150, while the sum is 67.

The spelling of 79650357799 in words is "seventy-nine billion, six hundred fifty million, three hundred fifty-seven thousand, seven hundred ninety-nine".