988888888887 has 16 divisors (see below), whose sum is σ = 1361161832448. Its totient is φ = 637941054240.

The previous prime is 988888888873. The next prime is 988888888891. The reversal of 988888888887 is 788888888889.

It is not a de Polignac number, because 988888888887 - 2¹⁹ = 988888364599 is a prime.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 988888888794 and 988888888803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (988888888807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 737553 + ... + 1588005.

It is an arithmetic number, because the mean of its divisors is an integer number (85072614528).

Almost surely, 2^988888888887 is an apocalyptic number.

988888888887 is a deficient number, since it is larger than the sum of its proper divisors (372272943561).

988888888887 is a wasteful number, since it uses less digits than its factorization.

988888888887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862990.

The product of its digits is 67645734912, while the sum is 96.

The spelling of 988888888887 in words is "nine hundred eighty-eight billion, eight hundred eighty-eight million, eight hundred eighty-eight thousand, eight hundred eighty-seven".