673658856376 has 128 divisors (see below), whose sum is σ = 1431137030400. Its totient is φ = 294611143680.

The previous prime is 673658856341. The next prime is 673658856407.

673658856376 is nontrivially palindromic in base 10.

673658856376 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 394182210 + ... + 394183918.

It is an arithmetic number, because the mean of its divisors is an integer number (11180758050).

Almost surely, 2^673658856376 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 673658856376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (715568515200).

673658856376 is an abundant number, since it is smaller than the sum of its proper divisors (757478174024).

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

673658856376 is a wasteful number, since it uses less digits than its factorization.

673658856376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3269 (or 3265 counting only the distinct ones).

The product of its digits is 914457600, while the sum is 70.

The spelling of 673658856376 in words is "six hundred seventy-three billion, six hundred fifty-eight million, eight hundred fifty-six thousand, three hundred seventy-six".