673603252368 has 80 divisors (see below), whose sum is σ = 1756713604800. Its totient is φ = 222397539840.

The previous prime is 673603252337. The next prime is 673603252369. The reversal of 673603252368 is 863252306376.

It is a self number, because there is not a number n which added to its sum of digits gives 673603252368.

It is not an unprimeable number, because it can be changed into a prime (673603252369) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 16245583 + ... + 16286993.

It is an arithmetic number, because the mean of its divisors is an integer number (21958920060).

Almost surely, 2^673603252368 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 673603252368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (878356802400).

673603252368 is an abundant number, since it is smaller than the sum of its proper divisors (1083110352432).

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

673603252368 is a wasteful number, since it uses less digits than its factorization.

673603252368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44640 (or 44634 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 51.

The spelling of 673603252368 in words is "six hundred seventy-three billion, six hundred three million, two hundred fifty-two thousand, three hundred sixty-eight".