9639826229923 has 2 divisors, whose sum is σ = 9639826229924. Its totient is φ = 9639826229922.

The previous prime is 9639826229897. The next prime is 9639826229947. The reversal of 9639826229923 is 3299226289369.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9639826229923 is a prime.

It is a super-2 number, since 2×9639826229923² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9639826229963) 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, 4819913114961 + 4819913114962.

It is an arithmetic number, because the mean of its divisors is an integer number (4819913114962).

Almost surely, 2^{9639826229923} is an apocalyptic number.

9639826229923 is a deficient number, since it is larger than the sum of its proper divisors (1).

9639826229923 is an equidigital number, since it uses as much as digits as its factorization.

9639826229923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272097792, while the sum is 70.

The spelling of 9639826229923 in words is "nine trillion, six hundred thirty-nine billion, eight hundred twenty-six million, two hundred twenty-nine thousand, nine hundred twenty-three".