981686411467 has 4 divisors (see below), whose sum is σ = 981690379920. Its totient is φ = 981682443016.

The previous prime is 981686411441. The next prime is 981686411479. The reversal of 981686411467 is 764114686189.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-981686411467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (981686411417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1586608 + ... + 2116765.

It is an arithmetic number, because the mean of its divisors is an integer number (245422594980).

Almost surely, 2^981686411467 is an apocalyptic number.

981686411467 is a deficient number, since it is larger than the sum of its proper divisors (3968453).

981686411467 is a wasteful number, since it uses less digits than its factorization.

981686411467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3968452.

The product of its digits is 13934592, while the sum is 61.

The spelling of 981686411467 in words is "nine hundred eighty-one billion, six hundred eighty-six million, four hundred eleven thousand, four hundred sixty-seven".