79636510379 has 4 divisors (see below), whose sum is σ = 83098967376. Its totient is φ = 76174053384.

The previous prime is 79636510357. The next prime is 79636510381. The reversal of 79636510379 is 97301563697.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97301563697 = 13 ⋅7484735669.

It is a cyclic number.

It is not a de Polignac number, because 79636510379 - 2⁸ = 79636510123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79636510579) by changing a digit.

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, 1731228464 + ... + 1731228509.

It is an arithmetic number, because the mean of its divisors is an integer number (20774741844).

Almost surely, 2^79636510379 is an apocalyptic number.

79636510379 is a deficient number, since it is larger than the sum of its proper divisors (3462456997).

79636510379 is a wasteful number, since it uses less digits than its factorization.

79636510379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3462456996.

The product of its (nonzero) digits is 6429780, while the sum is 56.

The spelling of 79636510379 in words is "seventy-nine billion, six hundred thirty-six million, five hundred ten thousand, three hundred seventy-nine".