99687768334 has 24 divisors (see below), whose sum is σ = 187841417904. Its totient is φ = 38839389600.

The previous prime is 99687768329. The next prime is 99687768379. The reversal of 99687768334 is 43386778699.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 29422087 + ... + 29425474.

It is an arithmetic number, because the mean of its divisors is an integer number (7826725746).

Almost surely, 2^99687768334 is an apocalyptic number.

99687768334 is a deficient number, since it is larger than the sum of its proper divisors (88153649570).

99687768334 is a wasteful number, since it uses less digits than its factorization.

99687768334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58847592 (or 58847581 counting only the distinct ones).

The product of its digits is 329204736, while the sum is 70.

The spelling of 99687768334 in words is "ninety-nine billion, six hundred eighty-seven million, seven hundred sixty-eight thousand, three hundred thirty-four".