16989473088 has 224 divisors, whose sum is σ = 58160229120. Its totient is φ = 4762368000.

The previous prime is 16989473077. The next prime is 16989473093. The reversal of 16989473088 is 88037498961.

16989473088 is a `hidden beast` number, since 1 + 6 + 9 + 89 + 473 + 0 + 88 = 666.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

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, 627838 + ... + 654338.

It is an arithmetic number, because the mean of its divisors is an integer number (259643880).

Almost surely, 2^16989473088 is an apocalyptic number.

16989473088 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16989473088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29080114560).

16989473088 is an abundant number, since it is smaller than the sum of its proper divisors (41170756032).

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

16989473088 is a wasteful number, since it uses less digits than its factorization.

16989473088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26582 (or 26566 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 63.

The spelling of 16989473088 in words is "sixteen billion, nine hundred eighty-nine million, four hundred seventy-three thousand, eighty-eight".