19734078029 has 2 divisors, whose sum is σ = 19734078030. Its totient is φ = 19734078028.

The previous prime is 19734078019. The next prime is 19734078071. The reversal of 19734078029 is 92087043791.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19600560004 + 133518025 = 140002^2 + 11555^2 .

It is a cyclic number.

It is not a de Polignac number, because 19734078029 - 2⁸ = 19734077773 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19734078019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9867039014 + 9867039015.

It is an arithmetic number, because the mean of its divisors is an integer number (9867039015).

Almost surely, 2^19734078029 is an apocalyptic number.

It is an amenable number.

19734078029 is a deficient number, since it is larger than the sum of its proper divisors (1).

19734078029 is an equidigital number, since it uses as much as digits as its factorization.

19734078029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 762048, while the sum is 50.

The spelling of 19734078029 in words is "nineteen billion, seven hundred thirty-four million, seventy-eight thousand, twenty-nine".