987782184960 has 640 divisors, whose sum is σ = 3401610854400. Its totient is φ = 244158824448.

The previous prime is 987782184959. The next prime is 987782184971. The reversal of 987782184960 is 69481287789.

It is a tau number, because it is divible by the number of its divisors (640).

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7777812417 + ... + 7777812543.

It is an arithmetic number, because the mean of its divisors is an integer number (5315016960).

Almost surely, 2^987782184960 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 987782184960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1700805427200).

987782184960 is an abundant number, since it is smaller than the sum of its proper divisors (2413828669440).

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

987782184960 is an equidigital number, since it uses as much as digits as its factorization.

987782184960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 97542144, while the sum is 69.

The spelling of 987782184960 in words is "nine hundred eighty-seven billion, seven hundred eighty-two million, one hundred eighty-four thousand, nine hundred sixty".