16806507827 has 4 divisors (see below), whose sum is σ = 16876244616. Its totient is φ = 16736771040.

The previous prime is 16806507797. The next prime is 16806507829. The reversal of 16806507827 is 72870560861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72870560861 = 7 ⋅10410080123.

It is a cyclic number.

It is not a de Polignac number, because 16806507827 - 2¹⁰ = 16806506803 is a prime.

It is a super-3 number, since 3×16806507827³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16806507829) 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 3 ways as a sum of consecutive naturals, for example, 34868033 + ... + 34868514.

It is an arithmetic number, because the mean of its divisors is an integer number (4219061154).

Almost surely, 2^16806507827 is an apocalyptic number.

16806507827 is a deficient number, since it is larger than the sum of its proper divisors (69736789).

16806507827 is an equidigital number, since it uses as much as digits as its factorization.

16806507827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69736788.

The product of its (nonzero) digits is 1128960, while the sum is 50.

The spelling of 16806507827 in words is "sixteen billion, eight hundred six million, five hundred seven thousand, eight hundred twenty-seven".