679801940608 has 128 divisors (see below), whose sum is σ = 1616083920000. Its totient is φ = 284567463936.

The previous prime is 679801940603. The next prime is 679801940611. The reversal of 679801940608 is 806049108976.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (679801940603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1707828 + ... + 2067916.

It is an arithmetic number, because the mean of its divisors is an integer number (12625655625).

Almost surely, 2^679801940608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 679801940608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (808041960000).

679801940608 is an abundant number, since it is smaller than the sum of its proper divisors (936281979392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

679801940608 is an equidigital number, since it uses as much as digits as its factorization.

679801940608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360167 (or 360141 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 58.

The spelling of 679801940608 in words is "six hundred seventy-nine billion, eight hundred one million, nine hundred forty thousand, six hundred eight".