987212161200 has 240 divisors, whose sum is σ = 3524623873920. Its totient is φ = 234730229760.

The previous prime is 987212161153. The next prime is 987212161207. The reversal of 987212161200 is 2161212789.

It is a tau number, because it is divible by the number of its divisors (240).

It is not an unprimeable number, because it can be changed into a prime (987212161207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 885894 + ... + 1661093.

It is an arithmetic number, because the mean of its divisors is an integer number (14685932808).

Almost surely, 2^987212161200 is an apocalyptic number.

It is an amenable number.

987212161200 is an abundant number, since it is smaller than the sum of its proper divisors (2537411712720).

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

987212161200 is a wasteful number, since it uses less digits than its factorization.

987212161200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2547044 (or 2547033 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 39.

Adding to 987212161200 its reverse (2161212789), we get a palindrome (989373373989).

The spelling of 987212161200 in words is "nine hundred eighty-seven billion, two hundred twelve million, one hundred sixty-one thousand, two hundred".