9878548919 has 4 divisors (see below), whose sum is σ = 9886285944. Its totient is φ = 9870811896.

The previous prime is 9878548873. The next prime is 9878548957. The reversal of 9878548919 is 9198458789.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9878548919 - 2⁸ = 9878548663 is a prime.

It is a super-2 number, since 2×9878548919² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9878548019) 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 3 ways as a sum of consecutive naturals, for example, 3866597 + ... + 3869150.

It is an arithmetic number, because the mean of its divisors is an integer number (2471571486).

Almost surely, 2^9878548919 is an apocalyptic number.

9878548919 is a deficient number, since it is larger than the sum of its proper divisors (7737025).

9878548919 is a wasteful number, since it uses less digits than its factorization.

9878548919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7737024.

The product of its digits is 52254720, while the sum is 68.

The square root of 9878548919 is about 99390.8895170981. The cubic root of 9878548919 is about 2145.6771927750.

The spelling of 9878548919 in words is "nine billion, eight hundred seventy-eight million, five hundred forty-eight thousand, nine hundred nineteen".