16918323479 has 2 divisors, whose sum is σ = 16918323480. Its totient is φ = 16918323478.

The previous prime is 16918323473. The next prime is 16918323481. The reversal of 16918323479 is 97432381961.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16918323479 - 2¹⁶ = 16918257943 is a prime.

Together with 16918323481, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16918323479.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16918323473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8459161739 + 8459161740.

It is an arithmetic number, because the mean of its divisors is an integer number (8459161740).

Almost surely, 2^16918323479 is an apocalyptic number.

16918323479 is a deficient number, since it is larger than the sum of its proper divisors (1).

16918323479 is an equidigital number, since it uses as much as digits as its factorization.

16918323479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1959552, while the sum is 53.

The spelling of 16918323479 in words is "sixteen billion, nine hundred eighteen million, three hundred twenty-three thousand, four hundred seventy-nine".