672424446477213 has 24 divisors (see below), whose sum is σ = 980195932355640. Its totient is φ = 444167850931200.

The previous prime is 672424446477149. The next prime is 672424446477361. The reversal of 672424446477213 is 312774644424276.

672424446477213 is a `hidden beast` number, since 6 + 7 + 2 + 42 + 44 + 464 + 77 + 21 + 3 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 141860534312484 + 530563912164729 = 11910522^2 + 23033973^2 .

It is not a de Polignac number, because 672424446477213 - 2⁶ = 672424446477149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672424446476213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 187629513 + ... + 191179713.

It is an arithmetic number, because the mean of its divisors is an integer number (40841497181485).

Almost surely, 2^{672424446477213} is an apocalyptic number.

It is an amenable number.

672424446477213 is a deficient number, since it is larger than the sum of its proper divisors (307771485878427).

672424446477213 is a wasteful number, since it uses less digits than its factorization.

672424446477213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3743389 (or 3743386 counting only the distinct ones).

The product of its digits is 303464448, while the sum is 63.

The spelling of 672424446477213 in words is "six hundred seventy-two trillion, four hundred twenty-four billion, four hundred forty-six million, four hundred seventy-seven thousand, two hundred thirteen".