99684262109 has 8 divisors (see below), whose sum is σ = 107163373440. Its totient is φ = 92428407936.

The previous prime is 99684262039. The next prime is 99684262133. The reversal of 99684262109 is 90126248699.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99684262109 is a prime.

It is a super-2 number, since 2×99684262109² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99684262169) 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 in 7 ways as a sum of consecutive naturals, for example, 55813364 + ... + 55815149.

It is an arithmetic number, because the mean of its divisors is an integer number (13395421680).

Almost surely, 2^99684262109 is an apocalyptic number.

It is an amenable number.

99684262109 is a deficient number, since it is larger than the sum of its proper divisors (7479111331).

99684262109 is a wasteful number, since it uses less digits than its factorization.

99684262109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111628579.

The product of its (nonzero) digits is 3359232, while the sum is 56.

The spelling of 99684262109 in words is "ninety-nine billion, six hundred eighty-four million, two hundred sixty-two thousand, one hundred nine".