1922717458993 has 2 divisors, whose sum is σ = 1922717458994. Its totient is φ = 1922717458992.

The previous prime is 1922717458979. The next prime is 1922717459077. The reversal of 1922717458993 is 3998547172291.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1285645302769 + 637072156224 = 1133863^2 + 798168^2 .

It is a cyclic number.

It is not a de Polignac number, because 1922717458993 - 2³³ = 1914127524401 is a prime.

It is not a weakly prime, because it can be changed into another prime (1922717458943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 961358729496 + 961358729497.

It is an arithmetic number, because the mean of its divisors is an integer number (961358729497).

Almost surely, 2^{1922717458993} is an apocalyptic number.

It is an amenable number.

1922717458993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1922717458993 is an equidigital number, since it uses as much as digits as its factorization.

1922717458993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68584320, while the sum is 67.

The spelling of 1922717458993 in words is "one trillion, nine hundred twenty-two billion, seven hundred seventeen million, four hundred fifty-eight thousand, nine hundred ninety-three".