6672819813 has 16 divisors (see below), whose sum is σ = 9707391552. Its totient is φ = 4043520000.

The previous prime is 6672819793. The next prime is 6672819827. The reversal of 6672819813 is 3189182766.

It is not a de Polignac number, because 6672819813 - 2⁶ = 6672819749 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6672819883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 306303 + ... + 327363.

It is an arithmetic number, because the mean of its divisors is an integer number (606711972).

Almost surely, 2^6672819813 is an apocalyptic number.

It is an amenable number.

6672819813 is a deficient number, since it is larger than the sum of its proper divisors (3034571739).

6672819813 is a wasteful number, since it uses less digits than its factorization.

6672819813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30676.

The product of its digits is 870912, while the sum is 51.

The square root of 6672819813 is about 81687.3295744205. The cubic root of 6672819813 is about 1882.6509129486.

The spelling of 6672819813 in words is "six billion, six hundred seventy-two million, eight hundred nineteen thousand, eight hundred thirteen".