989974344192 has 160 divisors (see below), whose sum is σ = 2703450968064. Its totient is φ = 321731788800.

The previous prime is 989974344173. The next prime is 989974344223. The reversal of 989974344192 is 291443479989.

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, 117194113 + ... + 117202559.

Almost surely, 2^989974344192 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 989974344192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1351725484032).

989974344192 is an abundant number, since it is smaller than the sum of its proper divisors (1713476623872).

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

989974344192 is a wasteful number, since it uses less digits than its factorization.

989974344192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10370 (or 10354 counting only the distinct ones).

The product of its digits is 141087744, while the sum is 69.

The spelling of 989974344192 in words is "nine hundred eighty-nine billion, nine hundred seventy-four million, three hundred forty-four thousand, one hundred ninety-two".