679736224561 has 8 divisors (see below), whose sum is σ = 702562541184. Its totient is φ = 657258401520.

The previous prime is 679736224543. The next prime is 679736224571. The reversal of 679736224561 is 165422637976.

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 679736224561 - 2¹⁷ = 679736093489 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 679736224496 and 679736224505.

It is not an unprimeable number, because it can be changed into a prime (679736224501) 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, 87119430 + ... + 87127231.

It is an arithmetic number, because the mean of its divisors is an integer number (87820317648).

Almost surely, 2^679736224561 is an apocalyptic number.

It is an amenable number.

679736224561 is a deficient number, since it is larger than the sum of its proper divisors (22826316623).

679736224561 is a wasteful number, since it uses less digits than its factorization.

679736224561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174246791.

The product of its digits is 22861440, while the sum is 58.

The spelling of 679736224561 in words is "six hundred seventy-nine billion, seven hundred thirty-six million, two hundred twenty-four thousand, five hundred sixty-one".