9975109219 has 4 divisors (see below), whose sum is σ = 9978242344. Its totient is φ = 9971976096.

The previous prime is 9975109213. The next prime is 9975109247. The reversal of 9975109219 is 9129015799.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9129015799 = 43 ⋅212302693.

It is a cyclic number.

It is not a de Polignac number, because 9975109219 - 2³ = 9975109211 is a prime.

It is a super-2 number, since 2×9975109219² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9975109211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1561782 + ... + 1568155.

It is an arithmetic number, because the mean of its divisors is an integer number (2494560586).

Almost surely, 2^9975109219 is an apocalyptic number.

9975109219 is a deficient number, since it is larger than the sum of its proper divisors (3133125).

9975109219 is a wasteful number, since it uses less digits than its factorization.

9975109219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3133124.

The product of its (nonzero) digits is 459270, while the sum is 52.

The square root of 9975109219 is about 99875.4685545955. The cubic root of 9975109219 is about 2152.6456861514.

The spelling of 9975109219 in words is "nine billion, nine hundred seventy-five million, one hundred nine thousand, two hundred nineteen".