16869817725 has 12 divisors (see below), whose sum is σ = 27891432096. Its totient is φ = 8997236080.

The previous prime is 16869817721. The next prime is 16869817733. The reversal of 16869817725 is 52771896861.

It is not a de Polignac number, because 16869817725 - 2² = 16869817721 is a prime.

It is a super-3 number, since 3×16869817725³ (a number of 32 digits) contains 333 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 11 ways as a sum of consecutive naturals, for example, 112465377 + ... + 112465526.

It is an arithmetic number, because the mean of its divisors is an integer number (2324286008).

Almost surely, 2^16869817725 is an apocalyptic number.

16869817725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16869817725 is a deficient number, since it is larger than the sum of its proper divisors (11021614371).

16869817725 is a wasteful number, since it uses less digits than its factorization.

16869817725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224930916 (or 224930911 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 60.

The spelling of 16869817725 in words is "sixteen billion, eight hundred sixty-nine million, eight hundred seventeen thousand, seven hundred twenty-five".