679623584654 has 16 divisors (see below), whose sum is σ = 1165216056288. Its totient is φ = 291230487072.

The previous prime is 679623584603. The next prime is 679623584663. The reversal of 679623584654 is 456485326976.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2948597 + ... + 3170720.

It is an arithmetic number, because the mean of its divisors is an integer number (72826003518).

Almost surely, 2^679623584654 is an apocalyptic number.

679623584654 is a deficient number, since it is larger than the sum of its proper divisors (485592471634).

679623584654 is a wasteful number, since it uses less digits than its factorization.

679623584654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6127259.

The product of its digits is 261273600, while the sum is 65.

The spelling of 679623584654 in words is "six hundred seventy-nine billion, six hundred twenty-three million, five hundred eighty-four thousand, six hundred fifty-four".