987109835712 has 2016 divisors, whose sum is σ = 3981389771520. Its totient is φ = 211527106560.

The previous prime is 987109835641. The next prime is 987109835783. The reversal of 987109835712 is 217538901789.

It is an interprime number because it is at equal distance from previous prime (987109835641) and next prime (987109835783).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 13522052508 + ... + 13522052580.

It is an arithmetic number, because the mean of its divisors is an integer number (1974895720).

Almost surely, 2^987109835712 is an apocalyptic number.

987109835712 is a gapful number since it is divisible by the number (92) 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 987109835712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1990694885760).

987109835712 is an abundant number, since it is smaller than the sum of its proper divisors (2994279935808).

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

987109835712 is a wasteful number, since it uses less digits than its factorization.

987109835712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 60.

The spelling of 987109835712 in words is "nine hundred eighty-seven billion, one hundred nine million, eight hundred thirty-five thousand, seven hundred twelve".