679842408961 has 8 divisors (see below), whose sum is σ = 746737657920. Its totient is φ = 616058566992.

The previous prime is 679842408899. The next prime is 679842408979. The reversal of 679842408961 is 169804248976.

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 679842408961 - 2¹⁵ = 679842376193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 679842408893 and 679842408902.

It is not an unprimeable number, because it can be changed into a prime (679842408361) 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, 777851290 + ... + 777852163.

It is an arithmetic number, because the mean of its divisors is an integer number (93342207240).

Almost surely, 2^679842408961 is an apocalyptic number.

It is an amenable number.

679842408961 is a deficient number, since it is larger than the sum of its proper divisors (66895248959).

679842408961 is a wasteful number, since it uses less digits than its factorization.

679842408961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1555703495.

The product of its (nonzero) digits is 41803776, while the sum is 64.

The spelling of 679842408961 in words is "six hundred seventy-nine billion, eight hundred forty-two million, four hundred eight thousand, nine hundred sixty-one".