16427438479 has 4 divisors (see below), whose sum is σ = 16809471976. Its totient is φ = 16045404984.

The previous prime is 16427438459. The next prime is 16427438497. The reversal of 16427438479 is 97483472461.

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 16427438479 - 2¹⁹ = 16426914191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16427438459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191016684 + ... + 191016769.

It is an arithmetic number, because the mean of its divisors is an integer number (4202367994).

Almost surely, 2^16427438479 is an apocalyptic number.

16427438479 is a deficient number, since it is larger than the sum of its proper divisors (382033497).

16427438479 is an equidigital number, since it uses as much as digits as its factorization.

16427438479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382033496.

The product of its digits is 8128512, while the sum is 55.

The spelling of 16427438479 in words is "sixteen billion, four hundred twenty-seven million, four hundred thirty-eight thousand, four hundred seventy-nine".