99999999991704 has 16 divisors (see below), whose sum is σ = 249999999979320. Its totient is φ = 33333333330560.

The previous prime is 99999999991687. The next prime is 99999999991711. The reversal of 99999999991704 is 40719999999999.

99999999991704 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 99999999991704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2083333333137 + ... + 2083333333184.

Almost surely, 2^{99999999991704} is an apocalyptic number.

It is an amenable number.

99999999991704 is an abundant number, since it is smaller than the sum of its proper divisors (149999999987616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99999999991704 is a wasteful number, since it uses less digits than its factorization.

99999999991704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4166666666330 (or 4166666666326 counting only the distinct ones).

The product of its (nonzero) digits is 97629963228, while the sum is 102.

The spelling of 99999999991704 in words is "ninety-nine trillion, nine hundred ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-one thousand, seven hundred four".