9881672913 has 24 divisors (see below), whose sum is σ = 16315406016. Its totient is φ = 5645700000.

The previous prime is 9881672887. The next prime is 9881672923. The reversal of 9881672913 is 3192761889.

It is not a de Polignac number, because 9881672913 - 2⁶ = 9881672849 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 9881672913.

It is not an unprimeable number, because it can be changed into a prime (9881672923) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 526338 + ... + 544788.

It is an arithmetic number, because the mean of its divisors is an integer number (679808584).

Almost surely, 2^9881672913 is an apocalyptic number.

It is an amenable number.

9881672913 is a deficient number, since it is larger than the sum of its proper divisors (6433733103).

9881672913 is a wasteful number, since it uses less digits than its factorization.

9881672913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26965 (or 26962 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 54.

The square root of 9881672913 is about 99406.6039707624. The cubic root of 9881672913 is about 2145.9033520439.

The spelling of 9881672913 in words is "nine billion, eight hundred eighty-one million, six hundred seventy-two thousand, nine hundred thirteen".