8978663424 has 384 divisors, whose sum is σ = 27172454400. Its totient is φ = 2622750720.

The previous prime is 8978663417. The next prime is 8978663443. The reversal of 8978663424 is 4243668798.

It is a tau number, because it is divible by the number of its divisors (384).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 152180707 + ... + 152180765.

It is an arithmetic number, because the mean of its divisors is an integer number (70761600).

Almost surely, 2^8978663424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8978663424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13586227200).

8978663424 is an abundant number, since it is smaller than the sum of its proper divisors (18193790976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8978663424 is a wasteful number, since it uses less digits than its factorization.

8978663424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179 (or 159 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 57.

The square root of 8978663424 is about 94755.8094472313. The cubic root of 8978663424 is about 2078.4387495213.

The spelling of 8978663424 in words is "eight billion, nine hundred seventy-eight million, six hundred sixty-three thousand, four hundred twenty-four".