9973768919 has 2 divisors, whose sum is σ = 9973768920. Its totient is φ = 9973768918.

The previous prime is 9973768897. The next prime is 9973768939. The reversal of 9973768919 is 9198673799.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9973768919 is a prime.

It is a super-2 number, since 2×9973768919² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9973768939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4986884459 + 4986884460.

It is an arithmetic number, because the mean of its divisors is an integer number (4986884460).

Almost surely, 2^9973768919 is an apocalyptic number.

9973768919 is a deficient number, since it is larger than the sum of its proper divisors (1).

9973768919 is an equidigital number, since it uses as much as digits as its factorization.

9973768919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46294416, while the sum is 68.

The square root of 9973768919 is about 99868.7584733084. The cubic root of 9973768919 is about 2152.5492688197.

The spelling of 9973768919 in words is "nine billion, nine hundred seventy-three million, seven hundred sixty-eight thousand, nine hundred nineteen".