16853718417 has 8 divisors (see below), whose sum is σ = 23793484896. Its totient is φ = 10574882112.

The previous prime is 16853718407. The next prime is 16853718419. The reversal of 16853718417 is 71481735861.

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

It is not a de Polignac number, because 16853718417 - 2²² = 16849524113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 330465067 = 16853718417 / (1 + 6 + 8 + 5 + 3 + 7 + 1 + 8 + 4 + 1 + 7).

It is a self number, because there is not a number n which added to its sum of digits gives 16853718417.

It is not an unprimeable number, because it can be changed into a prime (16853718419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165232483 + ... + 165232584.

It is an arithmetic number, because the mean of its divisors is an integer number (2974185612).

Almost surely, 2^16853718417 is an apocalyptic number.

16853718417 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

16853718417 is a deficient number, since it is larger than the sum of its proper divisors (6939766479).

16853718417 is a wasteful number, since it uses less digits than its factorization.

16853718417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330465087.

The product of its digits is 1128960, while the sum is 51.

The spelling of 16853718417 in words is "sixteen billion, eight hundred fifty-three million, seven hundred eighteen thousand, four hundred seventeen".