673400007305 has 16 divisors (see below), whose sum is σ = 819332273088. Its totient is φ = 531261000000.

The previous prime is 673400007277. The next prime is 673400007389. The reversal of 673400007305 is 503700004376.

It is a happy number.

It is not a de Polignac number, because 673400007305 - 2¹² = 673400003209 is a prime.

It is a Duffinian number.

It is a Curzon 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, 2529551 + ... + 2783060.

It is an arithmetic number, because the mean of its divisors is an integer number (51208267068).

Almost surely, 2^673400007305 is an apocalyptic number.

It is an amenable number.

673400007305 is a deficient number, since it is larger than the sum of its proper divisors (145932265783).

673400007305 is a wasteful number, since it uses less digits than its factorization.

673400007305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5312968.

The product of its (nonzero) digits is 52920, while the sum is 35.

The spelling of 673400007305 in words is "six hundred seventy-three billion, four hundred million, seven thousand, three hundred five".