673418545946496 has 640 divisors, whose sum is σ = 2324705431276800. Its totient is φ = 189541882994688.

The previous prime is 673418545946467. The next prime is 673418545946527. The reversal of 673418545946496 is 694649545814376.

673418545946496 is a `hidden beast` number, since 6 + 7 + 3 + 4 + 1 + 8 + 545 + 9 + 4 + 64 + 9 + 6 = 666.

673418545946496 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1389805900 + ... + 1390290356.

It is an arithmetic number, because the mean of its divisors is an integer number (3632352236370).

Almost surely, 2^{673418545946496} 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 673418545946496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1162352715638400).

673418545946496 is an abundant number, since it is smaller than the sum of its proper divisors (1651286885330304).

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

673418545946496 is a wasteful number, since it uses less digits than its factorization.

673418545946496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484776 (or 484755 counting only the distinct ones).

The product of its digits is 18811699200, while the sum is 81.

The spelling of 673418545946496 in words is "six hundred seventy-three trillion, four hundred eighteen billion, five hundred forty-five million, nine hundred forty-six thousand, four hundred ninety-six".