19349740133 has 2 divisors, whose sum is σ = 19349740134. Its totient is φ = 19349740132.

The previous prime is 19349740013. The next prime is 19349740159. The reversal of 19349740133 is 33104794391.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18080029444 + 1269710689 = 134462^2 + 35633^2 .

It is a cyclic number.

It is not a de Polignac number, because 19349740133 - 2²⁸ = 19081304677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19349742133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9674870066 + 9674870067.

It is an arithmetic number, because the mean of its divisors is an integer number (9674870067).

Almost surely, 2^19349740133 is an apocalyptic number.

It is an amenable number.

19349740133 is a deficient number, since it is larger than the sum of its proper divisors (1).

19349740133 is an equidigital number, since it uses as much as digits as its factorization.

19349740133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 244944, while the sum is 44.

The spelling of 19349740133 in words is "nineteen billion, three hundred forty-nine million, seven hundred forty thousand, one hundred thirty-three".