9989125015 has 8 divisors (see below), whose sum is σ = 11992246560. Its totient is φ = 7987768992.

The previous prime is 9989125001. The next prime is 9989125031. The reversal of 9989125015 is 5105219899.

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

It is a cyclic number.

It is not a de Polignac number, because 9989125015 - 2⁵ = 9989124983 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9989125015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428899 + ... + 451588.

It is an arithmetic number, because the mean of its divisors is an integer number (1499030820).

Almost surely, 2^9989125015 is an apocalyptic number.

9989125015 is a deficient number, since it is larger than the sum of its proper divisors (2003121545).

9989125015 is a wasteful number, since it uses less digits than its factorization.

9989125015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882761.

The product of its (nonzero) digits is 291600, while the sum is 49.

The square root of 9989125015 is about 99945.6102837939. The cubic root of 9989125015 is about 2153.6534252574.

The spelling of 9989125015 in words is "nine billion, nine hundred eighty-nine million, one hundred twenty-five thousand, fifteen".