9927738125 has 20 divisors (see below), whose sum is σ = 12414825984. Its totient is φ = 7936350000.

The previous prime is 9927738103. The next prime is 9927738169. The reversal of 9927738125 is 5218377299.

It is a happy number.

It is not a de Polignac number, because 9927738125 - 2⁶ = 9927738061 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 19 ways as a sum of consecutive naturals, for example, 976820 + ... + 986930.

Almost surely, 2^9927738125 is an apocalyptic number.

It is an amenable number.

9927738125 is a deficient number, since it is larger than the sum of its proper divisors (2487087859).

9927738125 is a wasteful number, since it uses less digits than its factorization.

9927738125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11702 (or 11687 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 53.

The square root of 9927738125 is about 99638.0355336254. The cubic root of 9927738125 is about 2149.2326899527.

The spelling of 9927738125 in words is "nine billion, nine hundred twenty-seven million, seven hundred thirty-eight thousand, one hundred twenty-five".