679369804478 has 64 divisors (see below), whose sum is σ = 1108789171200. Its totient is φ = 311219462400.

The previous prime is 679369804459. The next prime is 679369804511. The reversal of 679369804478 is 874408963976.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 191964833 + ... + 191968371.

It is an arithmetic number, because the mean of its divisors is an integer number (17324830800).

Almost surely, 2^679369804478 is an apocalyptic number.

679369804478 is a deficient number, since it is larger than the sum of its proper divisors (429419366722).

679369804478 is a wasteful number, since it uses less digits than its factorization.

679369804478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4697.

The product of its (nonzero) digits is 438939648, while the sum is 71.

The spelling of 679369804478 in words is "six hundred seventy-nine billion, three hundred sixty-nine million, eight hundred four thousand, four hundred seventy-eight".