9919539525530 has 16 divisors (see below), whose sum is σ = 18270407685024. Its totient is φ = 3875541023760.

The previous prime is 9919539525517. The next prime is 9919539525557. The reversal of 9919539525530 is 355259359199.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11534347856 + ... + 11534348715.

It is an arithmetic number, because the mean of its divisors is an integer number (1141900480314).

Almost surely, 2^{9919539525530} is an apocalyptic number.

9919539525530 is a deficient number, since it is larger than the sum of its proper divisors (8350868159494).

9919539525530 is a wasteful number, since it uses less digits than its factorization.

9919539525530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23068696621.

The product of its (nonzero) digits is 73811250, while the sum is 65.

The spelling of 9919539525530 in words is "nine trillion, nine hundred nineteen billion, five hundred thirty-nine million, five hundred twenty-five thousand, five hundred thirty".