78009568579 has 8 divisors (see below), whose sum is σ = 81503442720. Its totient is φ = 74524207296.

The previous prime is 78009568577. The next prime is 78009568591. The reversal of 78009568579 is 97586590087.

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 78009568579 - 2¹ = 78009568577 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 78009568579.

It is not an unprimeable number, because it can be changed into a prime (78009568577) 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, 2109474 + ... + 2146135.

It is an arithmetic number, because the mean of its divisors is an integer number (10187930340).

Almost surely, 2^78009568579 is an apocalyptic number.

78009568579 is a deficient number, since it is larger than the sum of its proper divisors (3493874141).

78009568579 is a wasteful number, since it uses less digits than its factorization.

78009568579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4256429.

The product of its (nonzero) digits is 38102400, while the sum is 64.

The spelling of 78009568579 in words is "seventy-eight billion, nine million, five hundred sixty-eight thousand, five hundred seventy-nine".