19746738307 has 2 divisors, whose sum is σ = 19746738308. Its totient is φ = 19746738306.

The previous prime is 19746738269. The next prime is 19746738313. The reversal of 19746738307 is 70383764791.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19746738307 - 2²⁷ = 19612520579 is a prime.

It is not a weakly prime, because it can be changed into another prime (19746738317) 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, 9873369153 + 9873369154.

It is an arithmetic number, because the mean of its divisors is an integer number (9873369154).

Almost surely, 2^19746738307 is an apocalyptic number.

19746738307 is a deficient number, since it is larger than the sum of its proper divisors (1).

19746738307 is an equidigital number, since it uses as much as digits as its factorization.

19746738307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5334336, while the sum is 55.

The spelling of 19746738307 in words is "nineteen billion, seven hundred forty-six million, seven hundred thirty-eight thousand, three hundred seven".