9972247819 has 2 divisors, whose sum is σ = 9972247820. Its totient is φ = 9972247818.

The previous prime is 9972247781. The next prime is 9972247843. The reversal of 9972247819 is 9187422799.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9972247819 - 2¹⁵ = 9972215051 is a prime.

It is a super-2 number, since 2×9972247819² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7972247819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4986123909 + 4986123910.

It is an arithmetic number, because the mean of its divisors is an integer number (4986123910).

Almost surely, 2^9972247819 is an apocalyptic number.

9972247819 is a deficient number, since it is larger than the sum of its proper divisors (1).

9972247819 is an equidigital number, since it uses as much as digits as its factorization.

9972247819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4572288, while the sum is 58.

The square root of 9972247819 is about 99861.1426882348. The cubic root of 9972247819 is about 2152.4398347904.

The spelling of 9972247819 in words is "nine billion, nine hundred seventy-two million, two hundred forty-seven thousand, eight hundred nineteen".