19334724949 has 2 divisors, whose sum is σ = 19334724950. Its totient is φ = 19334724948.

The previous prime is 19334724817. The next prime is 19334724953. The reversal of 19334724949 is 94942743391.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18801345924 + 533379025 = 137118^2 + 23095^2 .

It is an emirp because it is prime and its reverse (94942743391) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19334724949 - 2¹⁹ = 19334200661 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19334724949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19334721949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9667362474 + 9667362475.

It is an arithmetic number, because the mean of its divisors is an integer number (9667362475).

Almost surely, 2^19334724949 is an apocalyptic number.

It is an amenable number.

19334724949 is a deficient number, since it is larger than the sum of its proper divisors (1).

19334724949 is an equidigital number, since it uses as much as digits as its factorization.

19334724949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5878656, while the sum is 55.

The spelling of 19334724949 in words is "nineteen billion, three hundred thirty-four million, seven hundred twenty-four thousand, nine hundred forty-nine".