19109801129 has 2 divisors, whose sum is σ = 19109801130. Its totient is φ = 19109801128.

The previous prime is 19109801101. The next prime is 19109801147. The reversal of 19109801129 is 92110890191.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19106703529 + 3097600 = 138227^2 + 1760^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19109801129 is a prime.

It is not a weakly prime, because it can be changed into another prime (19109801429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9554900564 + 9554900565.

It is an arithmetic number, because the mean of its divisors is an integer number (9554900565).

Almost surely, 2^19109801129 is an apocalyptic number.

It is an amenable number.

19109801129 is a deficient number, since it is larger than the sum of its proper divisors (1).

19109801129 is an equidigital number, since it uses as much as digits as its factorization.

19109801129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 41.

The spelling of 19109801129 in words is "nineteen billion, one hundred nine million, eight hundred one thousand, one hundred twenty-nine".