16989473087 has 8 divisors (see below), whose sum is σ = 17015564160. Its totient is φ = 16963401880.

The previous prime is 16989473077. The next prime is 16989473093. The reversal of 16989473087 is 78037498961.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16989473087 - 2⁶ = 16989473023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16989473077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2768012 + ... + 2774142.

It is an arithmetic number, because the mean of its divisors is an integer number (2126945520).

Almost surely, 2^16989473087 is an apocalyptic number.

16989473087 is a deficient number, since it is larger than the sum of its proper divisors (26091073).

16989473087 is an equidigital number, since it uses as much as digits as its factorization.

16989473087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9933.

The product of its (nonzero) digits is 18289152, while the sum is 62.

The spelling of 16989473087 in words is "sixteen billion, nine hundred eighty-nine million, four hundred seventy-three thousand, eighty-seven".