9978419312 has 20 divisors (see below), whose sum is σ = 19335420936. Its totient is φ = 4988633280.

The previous prime is 9978419281. The next prime is 9978419323. The reversal of 9978419312 is 2139148799.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129983 + ... + 191969.

Almost surely, 2^9978419312 is an apocalyptic number.

It is an amenable number.

9978419312 is a deficient number, since it is larger than the sum of its proper divisors (9357001624).

9978419312 is a wasteful number, since it uses less digits than its factorization.

9978419312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72056 (or 72050 counting only the distinct ones).

The product of its digits is 979776, while the sum is 53.

The square root of 9978419312 is about 99892.0382813365. The cubic root of 9978419312 is about 2152.8837677352.

The spelling of 9978419312 in words is "nine billion, nine hundred seventy-eight million, four hundred nineteen thousand, three hundred twelve".