9969999699 has 32 divisors (see below), whose sum is σ = 14663577600. Its totient is φ = 5975402400.

The previous prime is 9969999671. The next prime is 9969999703.

9969999699 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 9969999699 - 2⁵ = 9969999667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9969995699) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1092144 + ... + 1101234.

It is an arithmetic number, because the mean of its divisors is an integer number (458236800).

Almost surely, 2^9969999699 is an apocalyptic number.

9969999699 is a deficient number, since it is larger than the sum of its proper divisors (4693577901).

9969999699 is a wasteful number, since it uses less digits than its factorization.

9969999699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9471.

The product of its digits is 1549681956, while the sum is 84.

The square root of 9969999699 is about 99849.8858236703. The cubic root of 9969999699 is about 2152.2780756497.

The spelling of 9969999699 in words is "nine billion, nine hundred sixty-nine million, nine hundred ninety-nine thousand, six hundred ninety-nine".