672001639048 has 16 divisors (see below), whose sum is σ = 1303451455500. Its totient is φ = 324414584256.

The previous prime is 672001639027. The next prime is 672001639063. The reversal of 672001639048 is 840936100276.

It can be written as a sum of positive squares in 2 ways, for example, as 670037199364 + 1964439684 = 818558^2 + 44322^2 .

It is a junction number, because it is equal to n+sod(n) for n = 672001638989 and 672001639007.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1448279163 + ... + 1448279626.

Almost surely, 2^672001639048 is an apocalyptic number.

It is an amenable number.

672001639048 is a deficient number, since it is larger than the sum of its proper divisors (631449816452).

672001639048 is a wasteful number, since it uses less digits than its factorization.

672001639048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2896558824 (or 2896558820 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 672001639048 in words is "six hundred seventy-two billion, one million, six hundred thirty-nine thousand, forty-eight".