19696424567 has 2 divisors, whose sum is σ = 19696424568. Its totient is φ = 19696424566.

The previous prime is 19696424551. The next prime is 19696424599. The reversal of 19696424567 is 76542469691.

It is a weak prime.

It is an emirp because it is prime and its reverse (76542469691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19696424567 - 2⁴ = 19696424551 is a prime.

It is a super-2 number, since 2×19696424567² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19696424507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9848212283 + 9848212284.

It is an arithmetic number, because the mean of its divisors is an integer number (9848212284).

Almost surely, 2^19696424567 is an apocalyptic number.

19696424567 is a deficient number, since it is larger than the sum of its proper divisors (1).

19696424567 is an equidigital number, since it uses as much as digits as its factorization.

19696424567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19595520, while the sum is 59.

The spelling of 19696424567 in words is "nineteen billion, six hundred ninety-six million, four hundred twenty-four thousand, five hundred sixty-seven".