988856687088 has 200 divisors, whose sum is σ = 2923308841200. Its totient is φ = 322611434496.

The previous prime is 988856687053. The next prime is 988856687111. The reversal of 988856687088 is 880786658889.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 988856686998 and 988856687016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 17482020 + ... + 17538492.

It is an arithmetic number, because the mean of its divisors is an integer number (14616544206).

Almost surely, 2^988856687088 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 988856687088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1461654420600).

988856687088 is an abundant number, since it is smaller than the sum of its proper divisors (1934452154112).

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

988856687088 is a wasteful number, since it uses less digits than its factorization.

988856687088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56781 (or 56766 counting only the distinct ones).

The product of its (nonzero) digits is 2972712960, while the sum is 81.

The spelling of 988856687088 in words is "nine hundred eighty-eight billion, eight hundred fifty-six million, six hundred eighty-seven thousand, eighty-eight".