9872130868 has 24 divisors (see below), whose sum is σ = 17592573600. Its totient is φ = 4845905568.

The previous prime is 9872130857. The next prime is 9872130869. The reversal of 9872130868 is 8680312789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9872130869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151023 + ... + 206281.

It is an arithmetic number, because the mean of its divisors is an integer number (733023900).

Almost surely, 2^9872130868 is an apocalyptic number.

It is an amenable number.

9872130868 is a deficient number, since it is larger than the sum of its proper divisors (7720442732).

9872130868 is a wasteful number, since it uses less digits than its factorization.

9872130868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56079 (or 56077 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 52.

The square root of 9872130868 is about 99358.5973532235. The cubic root of 9872130868 is about 2145.2124130056.

The spelling of 9872130868 in words is "nine billion, eight hundred seventy-two million, one hundred thirty thousand, eight hundred sixty-eight".