672226816013 has 4 divisors (see below), whose sum is σ = 673151475360. Its totient is φ = 671302156668.

The previous prime is 672226815989. The next prime is 672226816057. The reversal of 672226816013 is 310618622276.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 672226816013 - 2²⁸ = 671958380557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672226816213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 462328583 + ... + 462330036.

It is an arithmetic number, because the mean of its divisors is an integer number (168287868840).

Almost surely, 2^672226816013 is an apocalyptic number.

It is an amenable number.

672226816013 is a deficient number, since it is larger than the sum of its proper divisors (924659347).

672226816013 is an equidigital number, since it uses as much as digits as its factorization.

672226816013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924659346.

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 672226816013 in words is "six hundred seventy-two billion, two hundred twenty-six million, eight hundred sixteen thousand, thirteen".