9988938059 has 4 divisors (see below), whose sum is σ = 10201468704. Its totient is φ = 9776407416.

The previous prime is 9988937977. The next prime is 9988938061. The reversal of 9988938059 is 9508398899.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9508398899 = 113 ⋅84145123.

It is a cyclic number.

It is not a de Polignac number, because 9988938059 - 2¹² = 9988933963 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9988938059.

It is not an unprimeable number, because it can be changed into a prime (9988938859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106265252 + ... + 106265345.

It is an arithmetic number, because the mean of its divisors is an integer number (2550367176).

Almost surely, 2^9988938059 is an apocalyptic number.

9988938059 is a deficient number, since it is larger than the sum of its proper divisors (212530645).

9988938059 is a wasteful number, since it uses less digits than its factorization.

9988938059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212530644.

The product of its (nonzero) digits is 50388480, while the sum is 68.

The square root of 9988938059 is about 99944.6749907167. The cubic root of 9988938059 is about 2153.6399892811.

The spelling of 9988938059 in words is "nine billion, nine hundred eighty-eight million, nine hundred thirty-eight thousand, fifty-nine".