9869141399 has 4 divisors (see below), whose sum is σ = 10628306136. Its totient is φ = 9109976664.

The previous prime is 9869141389. The next prime is 9869141411. The reversal of 9869141399 is 9931419689.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9931419689 = 929 ⋅10690441.

It is a cyclic number.

It is not a de Polignac number, because 9869141399 - 2⁸ = 9869141143 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 (9869141309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 379582349 + ... + 379582374.

It is an arithmetic number, because the mean of its divisors is an integer number (2657076534).

Almost surely, 2^9869141399 is an apocalyptic number.

9869141399 is a deficient number, since it is larger than the sum of its proper divisors (759164737).

9869141399 is a wasteful number, since it uses less digits than its factorization.

9869141399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759164736.

The product of its digits is 3779136, while the sum is 59.

The square root of 9869141399 is about 99343.5523775952. The cubic root of 9869141399 is about 2144.9958541042.

The spelling of 9869141399 in words is "nine billion, eight hundred sixty-nine million, one hundred forty-one thousand, three hundred ninety-nine".