19429610069 has 2 divisors, whose sum is σ = 19429610070. Its totient is φ = 19429610068.

The previous prime is 19429610059. The next prime is 19429610113. The reversal of 19429610069 is 96001692491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16113001969 + 3316608100 = 126937^2 + 57590^2 .

It is an emirp because it is prime and its reverse (96001692491) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19429610069 is a prime.

It is a super-2 number, since 2×19429610069² (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 (19429610059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9714805034 + 9714805035.

It is an arithmetic number, because the mean of its divisors is an integer number (9714805035).

Almost surely, 2^19429610069 is an apocalyptic number.

It is an amenable number.

19429610069 is a deficient number, since it is larger than the sum of its proper divisors (1).

19429610069 is an equidigital number, since it uses as much as digits as its factorization.

19429610069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209952, while the sum is 47.

The spelling of 19429610069 in words is "nineteen billion, four hundred twenty-nine million, six hundred ten thousand, sixty-nine".