19679793745903 has 2 divisors, whose sum is σ = 19679793745904. Its totient is φ = 19679793745902.

The previous prime is 19679793745861. The next prime is 19679793745967. The reversal of 19679793745903 is 30954739797691.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19679793745903 - 2³⁷ = 19542354792431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19679793775903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9839896872951 + 9839896872952.

It is an arithmetic number, because the mean of its divisors is an integer number (9839896872952).

Almost surely, 2^{19679793745903} is an apocalyptic number.

19679793745903 is a deficient number, since it is larger than the sum of its proper divisors (1).

19679793745903 is an equidigital number, since it uses as much as digits as its factorization.

19679793745903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2430456840, while the sum is 79.

The spelling of 19679793745903 in words is "nineteen trillion, six hundred seventy-nine billion, seven hundred ninety-three million, seven hundred forty-five thousand, nine hundred three".