672642722457424 has 10 divisors (see below), whose sum is σ = 1303245274761290. Its totient is φ = 336321361228704.

The previous prime is 672642722457421. The next prime is 672642722457487. The reversal of 672642722457424 is 424754227246276.

It can be written as a sum of positive squares in only one way, i.e., 651166282561600 + 21476439895824 = 25517960^2 + 4634268^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672642722457421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21020085076779 + ... + 21020085076810.

It is an arithmetic number, because the mean of its divisors is an integer number (130324527476129).

Almost surely, 2^{672642722457424} is an apocalyptic number.

It is an amenable number.

672642722457424 is a deficient number, since it is larger than the sum of its proper divisors (630602552303866).

672642722457424 is a wasteful number, since it uses less digits than its factorization.

672642722457424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42040170153597 (or 42040170153591 counting only the distinct ones).

The product of its digits is 505774080, while the sum is 64.

The spelling of 672642722457424 in words is "six hundred seventy-two trillion, six hundred forty-two billion, seven hundred twenty-two million, four hundred fifty-seven thousand, four hundred twenty-four".