673456667789 has 8 divisors (see below), whose sum is σ = 675404783040. Its totient is φ = 671511236256.

The previous prime is 673456667783. The next prime is 673456667797. The reversal of 673456667789 is 987766654376.

673456667789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-673456667789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673456667783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167777 + ... + 1172630.

It is an arithmetic number, because the mean of its divisors is an integer number (84425597880).

Almost surely, 2^673456667789 is an apocalyptic number.

It is an amenable number.

673456667789 is a deficient number, since it is larger than the sum of its proper divisors (1948115251).

673456667789 is a wasteful number, since it uses less digits than its factorization.

673456667789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341859.

The product of its digits is 1920360960, while the sum is 74.

The spelling of 673456667789 in words is "six hundred seventy-three billion, four hundred fifty-six million, six hundred sixty-seven thousand, seven hundred eighty-nine".