889965569988 has 72 divisors (see below), whose sum is σ = 2494379474496. Its totient is φ = 265265438400.

The previous prime is 889965569959. The next prime is 889965569989.

889965569988 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 889965569898 and 889965569907.

It is not an unprimeable number, because it can be changed into a prime (889965569989) 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, 18397056 + ... + 18445367.

It is an arithmetic number, because the mean of its divisors is an integer number (34644159368).

Almost surely, 2^889965569988 is an apocalyptic number.

It is an amenable number.

889965569988 is an abundant number, since it is smaller than the sum of its proper divisors (1604413904508).

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

889965569988 is a wasteful number, since it uses less digits than its factorization.

889965569988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36842505 (or 36842500 counting only the distinct ones).

The product of its digits is 24186470400, while the sum is 90.

The spelling of 889965569988 in words is "eight hundred eighty-nine billion, nine hundred sixty-five million, five hundred sixty-nine thousand, nine hundred eighty-eight".