989975358912 has 28 divisors (see below), whose sum is σ = 2619309804296. Its totient is φ = 329991786240.

The previous prime is 989975358877. The next prime is 989975358941. The reversal of 989975358912 is 219853579989.

It is a happy number.

989975358912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×989975358912² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2578060639 + ... + 2578061022.

Almost surely, 2^989975358912 is an apocalyptic number.

It is an amenable number.

989975358912 is an abundant number, since it is smaller than the sum of its proper divisors (1629334445384).

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

989975358912 is a wasteful number, since it uses less digits than its factorization.

989975358912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5156121676 (or 5156121666 counting only the distinct ones).

The product of its digits is 440899200, while the sum is 75.

The spelling of 989975358912 in words is "nine hundred eighty-nine billion, nine hundred seventy-five million, three hundred fifty-eight thousand, nine hundred twelve".