6728100623 has 2 divisors, whose sum is σ = 6728100624. Its totient is φ = 6728100622.

The previous prime is 6728100611. The next prime is 6728100637. The reversal of 6728100623 is 3260018276.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6728100623 - 2⁴ = 6728100607 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6728100023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3364050311 + 3364050312.

It is an arithmetic number, because the mean of its divisors is an integer number (3364050312).

Almost surely, 2^6728100623 is an apocalyptic number.

6728100623 is a deficient number, since it is larger than the sum of its proper divisors (1).

6728100623 is an equidigital number, since it uses as much as digits as its factorization.

6728100623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 6728100623 is about 82024.9999878086. Note that the first 4 decimals coincide. The cubic root of 6728100623 is about 1887.8355467836.

Adding to 6728100623 its reverse (3260018276), we get a palindrome (9988118899).

The spelling of 6728100623 in words is "six billion, seven hundred twenty-eight million, one hundred thousand, six hundred twenty-three".