729000000019 has 2 divisors, whose sum is σ = 729000000020. Its totient is φ = 729000000018.

The previous prime is 728999999989. The next prime is 729000000037. The reversal of 729000000019 is 910000000927.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 729000000019 - 2²⁷ = 728865782291 is a prime.

It is a super-2 number, since 2×729000000019² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (729000000059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364500000009 + 364500000010.

It is an arithmetic number, because the mean of its divisors is an integer number (364500000010).

Almost surely, 2^729000000019 is an apocalyptic number.

729000000019 is a deficient number, since it is larger than the sum of its proper divisors (1).

729000000019 is an equidigital number, since it uses as much as digits as its factorization.

729000000019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 28.

The spelling of 729000000019 in words is "seven hundred twenty-nine billion, nineteen", and thus it is an aban number.