673800208407 has 6 divisors (see below), whose sum is σ = 973266967712. Its totient is φ = 449200138932.

The previous prime is 673800208357. The next prime is 673800208421. The reversal of 673800208407 is 704802008376.

It is a happy number.

673800208407 is a `hidden beast` number, since 6 + 7 + 38 + 0 + 0 + 208 + 407 = 666.

It is not a de Polignac number, because 673800208407 - 2¹⁵ = 673800175639 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 (673800208447) 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 5 ways as a sum of consecutive naturals, for example, 37433344903 + ... + 37433344920.

Almost surely, 2^673800208407 is an apocalyptic number.

673800208407 is a deficient number, since it is larger than the sum of its proper divisors (299466759305).

673800208407 is a wasteful number, since it uses less digits than its factorization.

673800208407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74866689829 (or 74866689826 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The spelling of 673800208407 in words is "six hundred seventy-three billion, eight hundred million, two hundred eight thousand, four hundred seven".