19734078071 has 2 divisors, whose sum is σ = 19734078072. Its totient is φ = 19734078070.

The previous prime is 19734078029. The next prime is 19734078083. The reversal of 19734078071 is 17087043791.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19734078071 - 2¹⁰ = 19734077047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19734078271) 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, 9867039035 + 9867039036.

It is an arithmetic number, because the mean of its divisors is an integer number (9867039036).

Almost surely, 2^19734078071 is an apocalyptic number.

19734078071 is a deficient number, since it is larger than the sum of its proper divisors (1).

19734078071 is an equidigital number, since it uses as much as digits as its factorization.

19734078071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 296352, while the sum is 47.

The spelling of 19734078071 in words is "nineteen billion, seven hundred thirty-four million, seventy-eight thousand, seventy-one".