9788500978125 has 24 divisors (see below), whose sum is σ = 16313124205728. Its totient is φ = 5220533850000.

The previous prime is 9788500978117. The next prime is 9788500978141. The reversal of 9788500978125 is 5218790058879.

9788500978125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9788500978125 - 2³ = 9788500978117 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 9788500978125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 522044011 + ... + 522062760.

It is an arithmetic number, because the mean of its divisors is an integer number (679713508572).

Almost surely, 2^{9788500978125} is an apocalyptic number.

It is an amenable number.

9788500978125 is a deficient number, since it is larger than the sum of its proper divisors (6524623227603).

9788500978125 is an equidigital number, since it uses as much as digits as its factorization.

9788500978125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044106799 (or 1044106779 counting only the distinct ones).

The product of its (nonzero) digits is 101606400, while the sum is 69.

The spelling of 9788500978125 in words is "nine trillion, seven hundred eighty-eight billion, five hundred million, nine hundred seventy-eight thousand, one hundred twenty-five".