79803679361 has 4 divisors (see below), whose sum is σ = 91204204992. Its totient is φ = 68403153732.

The previous prime is 79803679349. The next prime is 79803679381. The reversal of 79803679361 is 16397630897.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 79803679361 - 2³⁴ = 62623810177 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79803679361.

It is not an unprimeable number, because it can be changed into a prime (79803679381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5700262805 + ... + 5700262818.

It is an arithmetic number, because the mean of its divisors is an integer number (22801051248).

Almost surely, 2^79803679361 is an apocalyptic number.

It is an amenable number.

79803679361 is a deficient number, since it is larger than the sum of its proper divisors (11400525631).

79803679361 is a wasteful number, since it uses less digits than its factorization.

79803679361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11400525630.

The product of its (nonzero) digits is 10287648, while the sum is 59.

The spelling of 79803679361 in words is "seventy-nine billion, eight hundred three million, six hundred seventy-nine thousand, three hundred sixty-one".