6672788491 has 2 divisors, whose sum is σ = 6672788492. Its totient is φ = 6672788490.

The previous prime is 6672788489. The next prime is 6672788503. The reversal of 6672788491 is 1948872766.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6672788491 - 2¹ = 6672788489 is a prime.

It is a super-2 number, since 2×6672788491² = 89052212491244114162, which contains 22 as substring.

Together with 6672788489, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (6672798491) 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, 3336394245 + 3336394246.

It is an arithmetic number, because the mean of its divisors is an integer number (3336394246).

Almost surely, 2^6672788491 is an apocalyptic number.

6672788491 is a deficient number, since it is larger than the sum of its proper divisors (1).

6672788491 is an equidigital number, since it uses as much as digits as its factorization.

6672788491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8128512, while the sum is 58.

The square root of 6672788491 is about 81687.1378553564. The cubic root of 6672788491 is about 1882.6479672432.

The spelling of 6672788491 in words is "six billion, six hundred seventy-two million, seven hundred eighty-eight thousand, four hundred ninety-one".