679443646441 has 8 divisors (see below), whose sum is σ = 783630943040. Its totient is φ = 577037329488.

The previous prime is 679443646397. The next prime is 679443646463. The reversal of 679443646441 is 144646344976.

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 679443646441 - 2²³ = 679435257833 is a prime.

It is a super-2 number, since 2×679443646441² (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 (679443746441) 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, 445244091 + ... + 445245616.

It is an arithmetic number, because the mean of its divisors is an integer number (97953867880).

Almost surely, 2^679443646441 is an apocalyptic number.

It is an amenable number.

679443646441 is a deficient number, since it is larger than the sum of its proper divisors (104187296599).

679443646441 is a wasteful number, since it uses less digits than its factorization.

679443646441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890489823.

The product of its digits is 41803776, while the sum is 58.

The spelling of 679443646441 in words is "six hundred seventy-nine billion, four hundred forty-three million, six hundred forty-six thousand, four hundred forty-one".