676399467648 has 64 divisors (see below), whose sum is σ = 1808130107520. Its totient is φ = 224030376960.

The previous prime is 676399467647. The next prime is 676399467673. The reversal of 676399467648 is 846764993676.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 676399467648.

It is not an unprimeable number, because it can be changed into a prime (676399467647) 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, 5549448 + ... + 5670023.

It is an arithmetic number, because the mean of its divisors is an integer number (28252032930).

Almost surely, 2^676399467648 is an apocalyptic number.

It is an amenable number.

676399467648 is an abundant number, since it is smaller than the sum of its proper divisors (1131730639872).

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

676399467648 is a wasteful number, since it uses less digits than its factorization.

676399467648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11219645 (or 11219633 counting only the distinct ones).

The product of its digits is 1975228416, while the sum is 75.

The spelling of 676399467648 in words is "six hundred seventy-six billion, three hundred ninety-nine million, four hundred sixty-seven thousand, six hundred forty-eight".