9986527839025 has 12 divisors (see below), whose sum is σ = 12393726987312. Its totient is φ = 7982491647440.

The previous prime is 9986527838953. The next prime is 9986527839059. The reversal of 9986527839025 is 5209387256899.

It is not a de Polignac number, because 9986527839025 - 2⁹ = 9986527838513 is a prime.

It is a Duffinian 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, 168235327 + ... + 168294676.

It is an arithmetic number, because the mean of its divisors is an integer number (1032810582276).

Almost surely, 2^{9986527839025} is an apocalyptic number.

It is an amenable number.

9986527839025 is a deficient number, since it is larger than the sum of its proper divisors (2407199148287).

9986527839025 is a wasteful number, since it uses less digits than its factorization.

9986527839025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336531200 (or 336531195 counting only the distinct ones).

The product of its (nonzero) digits is 587865600, while the sum is 73.

The spelling of 9986527839025 in words is "nine trillion, nine hundred eighty-six billion, five hundred twenty-seven million, eight hundred thirty-nine thousand, twenty-five".