19942002893 has 2 divisors, whose sum is σ = 19942002894. Its totient is φ = 19942002892.

The previous prime is 19942002853. The next prime is 19942002911. The reversal of 19942002893 is 39820024991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13568056324 + 6373946569 = 116482^2 + 79837^2 .

It is a cyclic number.

It is not a de Polignac number, because 19942002893 - 2¹⁰ = 19942001869 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19942002853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9971001446 + 9971001447.

It is an arithmetic number, because the mean of its divisors is an integer number (9971001447).

Almost surely, 2^19942002893 is an apocalyptic number.

It is an amenable number.

19942002893 is a deficient number, since it is larger than the sum of its proper divisors (1).

19942002893 is an equidigital number, since it uses as much as digits as its factorization.

19942002893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 279936, while the sum is 47.

The spelling of 19942002893 in words is "nineteen billion, nine hundred forty-two million, two thousand, eight hundred ninety-three".