673813641396 has 432 divisors, whose sum is σ = 1951240233600. Its totient is φ = 180363456000.

The previous prime is 673813641383. The next prime is 673813641439. The reversal of 673813641396 is 693146318376.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 4462341921 + ... + 4462342071.

It is an arithmetic number, because the mean of its divisors is an integer number (4516759800).

Almost surely, 2^673813641396 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 673813641396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (975620116800).

673813641396 is an abundant number, since it is smaller than the sum of its proper divisors (1277426592204).

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

673813641396 is a wasteful number, since it uses less digits than its factorization.

673813641396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436 (or 396 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 57.

The spelling of 673813641396 in words is "six hundred seventy-three billion, eight hundred thirteen million, six hundred forty-one thousand, three hundred ninety-six".