988971505179889 has 16 divisors (see below), whose sum is σ = 1245211389841536. Its totient is φ = 762997175136000.

The previous prime is 988971505179881. The next prime is 988971505179937.

988971505179889 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 988971505179889 - 2³ = 988971505179881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 988971505179797 and 988971505179806.

It is not an unprimeable number, because it can be changed into a prime (988971505179881) 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, 63583090152 + ... + 63583105705.

It is an arithmetic number, because the mean of its divisors is an integer number (77825711865096).

Almost surely, 2^{988971505179889} is an apocalyptic number.

It is an amenable number.

988971505179889 is a deficient number, since it is larger than the sum of its proper divisors (256239884661647).

988971505179889 is a wasteful number, since it uses less digits than its factorization.

988971505179889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127166195976.

The product of its (nonzero) digits is 32920473600, while the sum is 94.

The spelling of 988971505179889 in words is "nine hundred eighty-eight trillion, nine hundred seventy-one billion, five hundred five million, one hundred seventy-nine thousand, eight hundred eighty-nine".