679530618897 has 8 divisors (see below), whose sum is σ = 975736273344. Its totient is φ = 418172688528.

The previous prime is 679530618889. The next prime is 679530618901. The reversal of 679530618897 is 798816035976.

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

It is not a de Polignac number, because 679530618897 - 2³ = 679530618889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (679530618817) 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, 8711930973 + ... + 8711931050.

It is an arithmetic number, because the mean of its divisors is an integer number (121967034168).

Almost surely, 2^679530618897 is an apocalyptic number.

It is an amenable number.

679530618897 is a deficient number, since it is larger than the sum of its proper divisors (296205654447).

679530618897 is a wasteful number, since it uses less digits than its factorization.

679530618897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17423862039.

The product of its (nonzero) digits is 137168640, while the sum is 69.

The spelling of 679530618897 in words is "six hundred seventy-nine billion, five hundred thirty million, six hundred eighteen thousand, eight hundred ninety-seven".