6672819749 has 2 divisors, whose sum is σ = 6672819750. Its totient is φ = 6672819748.

The previous prime is 6672819743. The next prime is 6672819763. The reversal of 6672819749 is 9479182766.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6635242849 + 37576900 = 81457^2 + 6130^2 .

It is a cyclic number.

It is not a de Polignac number, because 6672819749 - 2¹⁶ = 6672754213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6672819743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3336409874 + 3336409875.

It is an arithmetic number, because the mean of its divisors is an integer number (3336409875).

Almost surely, 2^6672819749 is an apocalyptic number.

It is an amenable number.

6672819749 is a deficient number, since it is larger than the sum of its proper divisors (1).

6672819749 is an equidigital number, since it uses as much as digits as its factorization.

6672819749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9144576, while the sum is 59.

The square root of 6672819749 is about 81687.3291826829. The cubic root of 6672819749 is about 1882.6509069297.

The spelling of 6672819749 in words is "six billion, six hundred seventy-two million, eight hundred nineteen thousand, seven hundred forty-nine".