672804401613 has 8 divisors (see below), whose sum is σ = 917934687648. Its totient is φ = 438105191664.

The previous prime is 672804401611. The next prime is 672804401657. The reversal of 672804401613 is 316104408276.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 672804401613 - 2¹ = 672804401611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672804401611) 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, 2607768870 + ... + 2607769127.

It is an arithmetic number, because the mean of its divisors is an integer number (114741835956).

Almost surely, 2^672804401613 is an apocalyptic number.

It is an amenable number.

672804401613 is a deficient number, since it is larger than the sum of its proper divisors (245130286035).

672804401613 is a wasteful number, since it uses less digits than its factorization.

672804401613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5215538043.

The product of its (nonzero) digits is 193536, while the sum is 42.

Adding to 672804401613 its reverse (316104408276), we get a palindrome (988908809889).

The spelling of 672804401613 in words is "six hundred seventy-two billion, eight hundred four million, four hundred one thousand, six hundred thirteen".