9999761099 has 2 divisors, whose sum is σ = 9999761100. Its totient is φ = 9999761098.

The previous prime is 9999761087. The next prime is 9999761111. The reversal of 9999761099 is 9901679999.

It is a balanced prime because it is at equal distance from previous prime (9999761087) and next prime (9999761111).

It is a cyclic number.

It is not a de Polignac number, because 9999761099 - 2²⁰ = 9998712523 is a prime.

It is not a weakly prime, because it can be changed into another prime (9999761039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4999880549 + 4999880550.

It is an arithmetic number, because the mean of its divisors is an integer number (4999880550).

Almost surely, 2^9999761099 is an apocalyptic number.

9999761099 is a deficient number, since it is larger than the sum of its proper divisors (1).

9999761099 is an equidigital number, since it uses as much as digits as its factorization.

9999761099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22320522, while the sum is 68.

The square root of 9999761099 is about 99998.8054878657. The cubic root of 9999761099 is about 2154.4175333419.

The spelling of 9999761099 in words is "nine billion, nine hundred ninety-nine million, seven hundred sixty-one thousand, ninety-nine".