673228502784 has 144 divisors (see below), whose sum is σ = 1992222618400. Its totient is φ = 224255361024.

The previous prime is 673228502777. The next prime is 673228502839. The reversal of 673228502784 is 487205822376.

673228502784 is a `hidden beast` number, since 6 + 7 + 32 + 28 + 502 + 7 + 84 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 673228502784.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10259262 + ... + 10324674.

Almost surely, 2^673228502784 is an apocalyptic number.

673228502784 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 673228502784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (996111309200).

673228502784 is an abundant number, since it is smaller than the sum of its proper divisors (1318994115616).

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

673228502784 is a wasteful number, since it uses less digits than its factorization.

673228502784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66927 (or 66907 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 54.

The spelling of 673228502784 in words is "six hundred seventy-three billion, two hundred twenty-eight million, five hundred two thousand, seven hundred eighty-four".