19109801147 has 2 divisors, whose sum is σ = 19109801148. Its totient is φ = 19109801146.

The previous prime is 19109801129. The next prime is 19109801177. The reversal of 19109801147 is 74110890191.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19109801147 - 2⁶ = 19109801083 is a prime.

It is not a weakly prime, because it can be changed into another prime (19109801177) 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, 9554900573 + 9554900574.

It is an arithmetic number, because the mean of its divisors is an integer number (9554900574).

Almost surely, 2^19109801147 is an apocalyptic number.

19109801147 is a deficient number, since it is larger than the sum of its proper divisors (1).

19109801147 is an equidigital number, since it uses as much as digits as its factorization.

19109801147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 41.

The spelling of 19109801147 in words is "nineteen billion, one hundred nine million, eight hundred one thousand, one hundred forty-seven".