19239562219993 has 2 divisors, whose sum is σ = 19239562219994. Its totient is φ = 19239562219992.

The previous prime is 19239562219981. The next prime is 19239562220059. The reversal of 19239562219993 is 39991226593291.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14037933238729 + 5201628981264 = 3746723^2 + 2280708^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19239562219993 is a prime.

It is not a weakly prime, because it can be changed into another prime (19239562219903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9619781109996 + 9619781109997.

It is an arithmetic number, because the mean of its divisors is an integer number (9619781109997).

Almost surely, 2^{19239562219993} is an apocalyptic number.

It is an amenable number.

19239562219993 is a deficient number, since it is larger than the sum of its proper divisors (1).

19239562219993 is an equidigital number, since it uses as much as digits as its factorization.

19239562219993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127545840, while the sum is 70.

The spelling of 19239562219993 in words is "nineteen trillion, two hundred thirty-nine billion, five hundred sixty-two million, two hundred nineteen thousand, nine hundred ninety-three".