988056650889 has 24 divisors (see below), whose sum is σ = 1779357433152. Its totient is φ = 513276181920.

The previous prime is 988056650881. The next prime is 988056650897.

988056650889 is a `hidden beast` number, since 9 + 8 + 8 + 0 + 566 + 50 + 8 + 8 + 9 = 666.

988056650889 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (988056650881) and next prime (988056650897).

It is not a de Polignac number, because 988056650889 - 2³ = 988056650881 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (988056650881) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 712882894 + ... + 712884279.

It is an arithmetic number, because the mean of its divisors is an integer number (74139893048).

Almost surely, 2^988056650889 is an apocalyptic number.

988056650889 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

It is an amenable number.

988056650889 is a deficient number, since it is larger than the sum of its proper divisors (791300782263).

988056650889 is a wasteful number, since it uses less digits than its factorization.

988056650889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1425767197 (or 1425767194 counting only the distinct ones).

The product of its (nonzero) digits is 298598400, while the sum is 72.

The spelling of 988056650889 in words is "nine hundred eighty-eight billion, fifty-six million, six hundred fifty thousand, eight hundred eighty-nine".