9999749763229 has 2 divisors, whose sum is σ = 9999749763230. Its totient is φ = 9999749763228.

The previous prime is 9999749763197. The next prime is 9999749763259. The reversal of 9999749763229 is 9223679479999.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6011700823129 + 3988048940100 = 2451877^2 + 1997010^2 .

It is a cyclic number.

It is not a de Polignac number, because 9999749763229 - 2⁵ = 9999749763197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9999749763259) 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, 4999874881614 + 4999874881615.

It is an arithmetic number, because the mean of its divisors is an integer number (4999874881615).

Almost surely, 2^{9999749763229} is an apocalyptic number.

It is an amenable number.

9999749763229 is a deficient number, since it is larger than the sum of its proper divisors (1).

9999749763229 is an equidigital number, since it uses as much as digits as its factorization.

9999749763229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7499695392, while the sum is 85.

The spelling of 9999749763229 in words is "nine trillion, nine hundred ninety-nine billion, seven hundred forty-nine million, seven hundred sixty-three thousand, two hundred twenty-nine".