672455999425 has 18 divisors (see below), whose sum is σ = 969983471958. Its totient is φ = 461112684480.

The previous prime is 672455999393. The next prime is 672455999431. The reversal of 672455999425 is 524999554276.

It can be written as a sum of positive squares in 3 ways, for example, as 47793392689 + 624662606736 = 218617^2 + 790356^2 .

It is not a de Polignac number, because 672455999425 - 2⁵ = 672455999393 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 274470612 + ... + 274473061.

Almost surely, 2^672455999425 is an apocalyptic number.

It is an amenable number.

672455999425 is a deficient number, since it is larger than the sum of its proper divisors (297527472533).

672455999425 is a wasteful number, since it uses less digits than its factorization.

672455999425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548943697 (or 548943685 counting only the distinct ones).

The product of its digits is 244944000, while the sum is 67.

The spelling of 672455999425 in words is "six hundred seventy-two billion, four hundred fifty-five million, nine hundred ninety-nine thousand, four hundred twenty-five".