18799167479 has 2 divisors, whose sum is σ = 18799167480. Its totient is φ = 18799167478.

The previous prime is 18799167449. The next prime is 18799167481. The reversal of 18799167479 is 97476199781.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18799167479 is a prime.

Together with 18799167481, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18799167449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9399583739 + 9399583740.

It is an arithmetic number, because the mean of its divisors is an integer number (9399583740).

Almost surely, 2^18799167479 is an apocalyptic number.

18799167479 is a deficient number, since it is larger than the sum of its proper divisors (1).

18799167479 is an equidigital number, since it uses as much as digits as its factorization.

18799167479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48009024, while the sum is 68.

The spelling of 18799167479 in words is "eighteen billion, seven hundred ninety-nine million, one hundred sixty-seven thousand, four hundred seventy-nine".