676391938560 has 480 divisors, whose sum is σ = 2616196302720. Its totient is φ = 166494486528.

The previous prime is 676391938553. The next prime is 676391938577. The reversal of 676391938560 is 65839193676.

676391938560 is a `hidden beast` number, since 6 + 7 + 6 + 39 + 1 + 9 + 38 + 560 = 666.

It is a tau number, because it is divible by the number of its divisors (480).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8045221 + ... + 8128859.

It is an arithmetic number, because the mean of its divisors is an integer number (5450408964).

Almost surely, 2^676391938560 is an apocalyptic number.

676391938560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 676391938560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1308098151360).

676391938560 is an abundant number, since it is smaller than the sum of its proper divisors (1939804364160).

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

676391938560 is an equidigital number, since it uses as much as digits as its factorization.

676391938560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83690 (or 83662 counting only the distinct ones).

The product of its (nonzero) digits is 44089920, while the sum is 63.

The spelling of 676391938560 in words is "six hundred seventy-six billion, three hundred ninety-one million, nine hundred thirty-eight thousand, five hundred sixty".