19109801429 has 2 divisors, whose sum is σ = 19109801430. Its totient is φ = 19109801428.

The previous prime is 19109801407. The next prime is 19109801461. The reversal of 19109801429 is 92410890191.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18964044100 + 145757329 = 137710^2 + 12073^2 .

It is a cyclic number.

It is not a de Polignac number, because 19109801429 - 2²⁴ = 19093024213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19109801429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19109801129) 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, 9554900714 + 9554900715.

It is an arithmetic number, because the mean of its divisors is an integer number (9554900715).

Almost surely, 2^19109801429 is an apocalyptic number.

It is an amenable number.

19109801429 is a deficient number, since it is larger than the sum of its proper divisors (1).

19109801429 is an equidigital number, since it uses as much as digits as its factorization.

19109801429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 44.

The spelling of 19109801429 in words is "nineteen billion, one hundred nine million, eight hundred one thousand, four hundred twenty-nine".