989073911808 has 416 divisors, whose sum is σ = 3002254438080. Its totient is φ = 321690009600.

The previous prime is 989073911731. The next prime is 989073911851. The reversal of 989073911808 is 808119370989.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 815394210 + ... + 815395422.

Almost surely, 2^989073911808 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 989073911808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1501127219040).

989073911808 is an abundant number, since it is smaller than the sum of its proper divisors (2013180526272).

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

989073911808 is a wasteful number, since it uses less digits than its factorization.

989073911808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420 (or 1392 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 63.

The spelling of 989073911808 in words is "nine hundred eighty-nine billion, seventy-three million, nine hundred eleven thousand, eight hundred eight".