987888877712 has 80 divisors (see below), whose sum is σ = 2156430741504. Its totient is φ = 434346192000.

The previous prime is 987888877663. The next prime is 987888877727. The reversal of 987888877712 is 217778888789.

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 15 ways as a sum of consecutive naturals, for example, 11584253 + ... + 11669219.

Almost surely, 2^987888877712 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 987888877712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1078215370752).

987888877712 is an abundant number, since it is smaller than the sum of its proper divisors (1168541863792).

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

987888877712 is a wasteful number, since it uses less digits than its factorization.

987888877712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87148 (or 87142 counting only the distinct ones).

The product of its digits is 1416167424, while the sum is 80.

It can be divided in two parts, 9878888777 and 12, that added together give a palindrome (9878888789).

The spelling of 987888877712 in words is "nine hundred eighty-seven billion, eight hundred eighty-eight million, eight hundred seventy-seven thousand, seven hundred twelve".