16897789441 has 24 divisors (see below), whose sum is σ = 19260092544. Its totient is φ = 14735247840.

The previous prime is 16897789423. The next prime is 16897789553. The reversal of 16897789441 is 14498779861.

It is not a de Polignac number, because 16897789441 - 2¹⁹ = 16897265153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16897787441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1717426 + ... + 1727236.

It is an arithmetic number, because the mean of its divisors is an integer number (802503856).

Almost surely, 2^16897789441 is an apocalyptic number.

It is an amenable number.

16897789441 is a deficient number, since it is larger than the sum of its proper divisors (2362303103).

16897789441 is a wasteful number, since it uses less digits than its factorization.

16897789441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10229 (or 10210 counting only the distinct ones).

The product of its digits is 24385536, while the sum is 64.

The spelling of 16897789441 in words is "sixteen billion, eight hundred ninety-seven million, seven hundred eighty-nine thousand, four hundred forty-one".