9978480539 has 8 divisors (see below), whose sum is σ = 10309337472. Its totient is φ = 9648184320.

The previous prime is 9978480521. The next prime is 9978480581. The reversal of 9978480539 is 9350848799.

9978480539 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9978480539 - 2²⁰ = 9977431963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9978482539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103844 + ... + 175329.

It is an arithmetic number, because the mean of its divisors is an integer number (1288667184).

Almost surely, 2^9978480539 is an apocalyptic number.

9978480539 is a deficient number, since it is larger than the sum of its proper divisors (330856933).

9978480539 is a wasteful number, since it uses less digits than its factorization.

9978480539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280357.

The product of its (nonzero) digits is 19595520, while the sum is 62.

The square root of 9978480539 is about 99892.3447467322. The cubic root of 9978480539 is about 2152.8881710493. Note that the first 3 decimals are identical.

The spelling of 9978480539 in words is "nine billion, nine hundred seventy-eight million, four hundred eighty thousand, five hundred thirty-nine".