16869817726 has 16 divisors (see below), whose sum is σ = 25866990000. Its totient is φ = 8248969728.

The previous prime is 16869817721. The next prime is 16869817733. The reversal of 16869817726 is 62771896861.

It is a super-2 number, since 2×16869817726² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16869817721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347601 + ... + 393148.

It is an arithmetic number, because the mean of its divisors is an integer number (1616686875).

Almost surely, 2^16869817726 is an apocalyptic number.

16869817726 is a deficient number, since it is larger than the sum of its proper divisors (8997172274).

16869817726 is a wasteful number, since it uses less digits than its factorization.

16869817726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741003.

The product of its digits is 12192768, while the sum is 61.

The spelling of 16869817726 in words is "sixteen billion, eight hundred sixty-nine million, eight hundred seventeen thousand, seven hundred twenty-six".