79668748559 has 8 divisors (see below), whose sum is σ = 83398214112. Its totient is φ = 75961416960.

The previous prime is 79668748553. The next prime is 79668748571. The reversal of 79668748559 is 95584786697.

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

It is a cyclic number.

It is not a de Polignac number, because 79668748559 - 2⁴ = 79668748543 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 (79668748553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5526122 + ... + 5540519.

It is an arithmetic number, because the mean of its divisors is an integer number (10424776764).

Almost surely, 2^79668748559 is an apocalyptic number.

79668748559 is a deficient number, since it is larger than the sum of its proper divisors (3729465553).

79668748559 is a wasteful number, since it uses less digits than its factorization.

79668748559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11066977.

The product of its digits is 914457600, while the sum is 74.

The spelling of 79668748559 in words is "seventy-nine billion, six hundred sixty-eight million, seven hundred forty-eight thousand, five hundred fifty-nine".