679861205443 has 8 divisors (see below), whose sum is σ = 789721681760. Its totient is φ = 573185090880.

The previous prime is 679861205399. The next prime is 679861205449. The reversal of 679861205443 is 344502168976.

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 679861205443 - 2³⁷ = 542422251971 is a prime.

It is a super-2 number, since 2×679861205443² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (679861205449) 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, 796089978 + ... + 796090831.

It is an arithmetic number, because the mean of its divisors is an integer number (98715210220).

It is a 2-persistent number, because it is pandigital, and so is 2⋅679861205443 = 1359722410886, but 3⋅679861205443 = 2039583616329 is not.

Almost surely, 2^679861205443 is an apocalyptic number.

679861205443 is a deficient number, since it is larger than the sum of its proper divisors (109860476317).

679861205443 is a wasteful number, since it uses less digits than its factorization.

679861205443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1592180877.

The product of its (nonzero) digits is 8709120, while the sum is 55.

The spelling of 679861205443 in words is "six hundred seventy-nine billion, eight hundred sixty-one million, two hundred five thousand, four hundred forty-three".