989416916920 has 64 divisors (see below), whose sum is σ = 2230205947200. Its totient is φ = 395053148160.

The previous prime is 989416916893. The next prime is 989416916933. The reversal of 989416916920 is 29619614989.

It is a super-3 number, since 3×989416916920³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52960141 + ... + 52978819.

It is an arithmetic number, because the mean of its divisors is an integer number (34846967925).

Almost surely, 2^989416916920 is an apocalyptic number.

It is an amenable number.

989416916920 is an abundant number, since it is smaller than the sum of its proper divisors (1240789030280).

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

989416916920 is a wasteful number, since it uses less digits than its factorization.

989416916920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21008 (or 21004 counting only the distinct ones).

The product of its (nonzero) digits is 15116544, while the sum is 64.

The spelling of 989416916920 in words is "nine hundred eighty-nine billion, four hundred sixteen million, nine hundred sixteen thousand, nine hundred twenty".