672721483624 has 32 divisors (see below), whose sum is σ = 1292177645640. Its totient is φ = 328141542400.

The previous prime is 672721483601. The next prime is 672721483627. The reversal of 672721483624 is 426384127276.

It can be written as a sum of positive squares in 4 ways, for example, as 579257988100 + 93463495524 = 761090^2 + 305718^2 .

It is not an unprimeable number, because it can be changed into a prime (672721483627) 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 7 ways as a sum of consecutive naturals, for example, 10668252 + ... + 10731124.

Almost surely, 2^672721483624 is an apocalyptic number.

It is an amenable number.

672721483624 is a deficient number, since it is larger than the sum of its proper divisors (619456162016).

672721483624 is a wasteful number, since it uses less digits than its factorization.

672721483624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95541 (or 95537 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 52.

The spelling of 672721483624 in words is "six hundred seventy-two billion, seven hundred twenty-one million, four hundred eighty-three thousand, six hundred twenty-four".