19791669307 has 2 divisors, whose sum is σ = 19791669308. Its totient is φ = 19791669306.

The previous prime is 19791669217. The next prime is 19791669341. The reversal of 19791669307 is 70396619791.

It is a strong prime.

It is an emirp because it is prime and its reverse (70396619791) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19791669307 is a prime.

It is not a weakly prime, because it can be changed into another prime (19791669367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9895834653 + 9895834654.

It is an arithmetic number, because the mean of its divisors is an integer number (9895834654).

Almost surely, 2^19791669307 is an apocalyptic number.

19791669307 is a deficient number, since it is larger than the sum of its proper divisors (1).

19791669307 is an equidigital number, since it uses as much as digits as its factorization.

19791669307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3857868, while the sum is 58.

The spelling of 19791669307 in words is "nineteen billion, seven hundred ninety-one million, six hundred sixty-nine thousand, three hundred seven".