9788924565725 has 12 divisors (see below), whose sum is σ = 12158735731956. Its totient is φ = 7817933671680.

The previous prime is 9788924565713. The next prime is 9788924565737. The reversal of 9788924565725 is 5275654298879.

It is an interprime number because it is at equal distance from previous prime (9788924565713) and next prime (9788924565737).

It can be written as a sum of positive squares in 6 ways, for example, as 964377028729 + 8824547536996 = 982027^2 + 2970614^2 .

It is not a de Polignac number, because 9788924565725 - 2⁶ = 9788924565661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 330134402 + ... + 330164051.

It is an arithmetic number, because the mean of its divisors is an integer number (1013227977663).

Almost surely, 2^{9788924565725} is an apocalyptic number.

It is an amenable number.

9788924565725 is a deficient number, since it is larger than the sum of its proper divisors (2369811166231).

9788924565725 is a wasteful number, since it uses less digits than its factorization.

9788924565725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660299056 (or 660299051 counting only the distinct ones).

The product of its digits is 3048192000, while the sum is 77.

The spelling of 9788924565725 in words is "nine trillion, seven hundred eighty-eight billion, nine hundred twenty-four million, five hundred sixty-five thousand, seven hundred twenty-five".