983447705856 has 864 divisors, whose sum is σ = 3433947471360. Its totient is φ = 246951936000.

The previous prime is 983447705819. The next prime is 983447705909. The reversal of 983447705856 is 658507744389.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1636351956 + ... + 1636352556.

It is an arithmetic number, because the mean of its divisors is an integer number (3974476240).

Almost surely, 2^983447705856 is an apocalyptic number.

983447705856 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 983447705856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1716973735680).

983447705856 is an abundant number, since it is smaller than the sum of its proper divisors (2450499765504).

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

983447705856 is a wasteful number, since it uses less digits than its factorization.

983447705856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771 (or 750 counting only the distinct ones).

The product of its (nonzero) digits is 203212800, while the sum is 66.

The spelling of 983447705856 in words is "nine hundred eighty-three billion, four hundred forty-seven million, seven hundred five thousand, eight hundred fifty-six".