18472499179 has 4 divisors (see below), whose sum is σ = 18495000000. Its totient is φ = 18449998360.

The previous prime is 18472499167. The next prime is 18472499189. The reversal of 18472499179 is 97199427481.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97199427481 = 13 ⋅7476879037.

It is a cyclic number.

It is not a de Polignac number, because 18472499179 - 2⁵ = 18472499147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18472499189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11249179 + ... + 11250820.

It is an arithmetic number, because the mean of its divisors is an integer number (4623750000).

Almost surely, 2^18472499179 is an apocalyptic number.

18472499179 is a deficient number, since it is larger than the sum of its proper divisors (22500821).

18472499179 is an equidigital number, since it uses as much as digits as its factorization.

18472499179 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22500820.

The product of its digits is 9144576, while the sum is 61.

The spelling of 18472499179 in words is "eighteen billion, four hundred seventy-two million, four hundred ninety-nine thousand, one hundred seventy-nine".