988687949786888 has 96 divisors (see below), whose sum is σ = 2030288818860000. Its totient is φ = 451106793865728.

The previous prime is 988687949786863. The next prime is 988687949786903. The reversal of 988687949786888 is 888687949786889.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 651299303 + ... + 652815561.

It is an arithmetic number, because the mean of its divisors is an integer number (21148841863125).

Almost surely, 2^{988687949786888} 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 988687949786888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1015144409430000).

988687949786888 is an abundant number, since it is smaller than the sum of its proper divisors (1041600869073112).

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

988687949786888 is a wasteful number, since it uses less digits than its factorization.

988687949786888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521799 (or 1521782 counting only the distinct ones).

The product of its digits is 10787380789248, while the sum is 113.

Subtracting from 988687949786888 its reverse (888687949786889), we obtain a palindrome (99999999999999).

The spelling of 988687949786888 in words is "nine hundred eighty-eight trillion, six hundred eighty-seven billion, nine hundred forty-nine million, seven hundred eighty-six thousand, eight hundred eighty-eight".