978871700448 has 480 divisors, whose sum is σ = 3032747736480. Its totient is φ = 309407662080.

The previous prime is 978871700447. The next prime is 978871700449. The reversal of 978871700448 is 844007178879.

It is an interprime number because it is at equal distance from previous prime (978871700447) and next prime (978871700449).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978871700441) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 623087503 + ... + 623089073.

It is an arithmetic number, because the mean of its divisors is an integer number (6318224451).

Almost surely, 2^978871700448 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 978871700448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1516373868240).

978871700448 is an abundant number, since it is smaller than the sum of its proper divisors (2053876036032).

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

978871700448 is a wasteful number, since it uses less digits than its factorization.

978871700448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792 (or 1775 counting only the distinct ones).

The product of its (nonzero) digits is 25288704, while the sum is 63.

The spelling of 978871700448 in words is "nine hundred seventy-eight billion, eight hundred seventy-one million, seven hundred thousand, four hundred forty-eight".