673773229825 has 6 divisors (see below), whose sum is σ = 835478805014. Its totient is φ = 539018583840.

The previous prime is 673773229823. The next prime is 673773229859. The reversal of 673773229825 is 528922377376.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 18962116209 + 654811113616 = 137703^2 + 809204^2 .

It is not a de Polignac number, because 673773229825 - 2¹ = 673773229823 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673773229823) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13475464572 + ... + 13475464621.

Almost surely, 2^673773229825 is an apocalyptic number.

It is an amenable number.

673773229825 is a deficient number, since it is larger than the sum of its proper divisors (161705575189).

673773229825 is a wasteful number, since it uses less digits than its factorization.

673773229825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26950929203 (or 26950929198 counting only the distinct ones).

The product of its digits is 53343360, while the sum is 61.

The spelling of 673773229825 in words is "six hundred seventy-three billion, seven hundred seventy-three million, two hundred twenty-nine thousand, eight hundred twenty-five".