16840681467 has 4 divisors (see below), whose sum is σ = 22454241960. Its totient is φ = 11227120976.

The previous prime is 16840681453. The next prime is 16840681469. The reversal of 16840681467 is 76418604861.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16840681467 - 2⁷ = 16840681339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16840681469) 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, 2806780242 + ... + 2806780247.

It is an arithmetic number, because the mean of its divisors is an integer number (5613560490).

Almost surely, 2^16840681467 is an apocalyptic number.

16840681467 is a deficient number, since it is larger than the sum of its proper divisors (5613560493).

16840681467 is an equidigital number, since it uses as much as digits as its factorization.

16840681467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5613560492.

The product of its (nonzero) digits is 1548288, while the sum is 51.

The spelling of 16840681467 in words is "sixteen billion, eight hundred forty million, six hundred eighty-one thousand, four hundred sixty-seven".