9979011527 has 4 divisors (see below), whose sum is σ = 10504222680. Its totient is φ = 9453800376.

The previous prime is 9979011517. The next prime is 9979011571. The reversal of 9979011527 is 7251109799.

9979011527 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7251109799 = 23561 ⋅307759.

It is a cyclic number.

It is not a de Polignac number, because 9979011527 - 2⁶ = 9979011463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9979011517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262605548 + ... + 262605585.

It is an arithmetic number, because the mean of its divisors is an integer number (2626055670).

Almost surely, 2^9979011527 is an apocalyptic number.

9979011527 is a deficient number, since it is larger than the sum of its proper divisors (525211153).

9979011527 is a wasteful number, since it uses less digits than its factorization.

9979011527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525211152.

The product of its (nonzero) digits is 357210, while the sum is 50.

The square root of 9979011527 is about 99895.0025126382. The cubic root of 9979011527 is about 2152.9263578088.

The spelling of 9979011527 in words is "nine billion, nine hundred seventy-nine million, eleven thousand, five hundred twenty-seven".