18807477014 has 4 divisors (see below), whose sum is σ = 28211215524. Its totient is φ = 9403738506.

The previous prime is 18807477001. The next prime is 18807477019. The reversal of 18807477014 is 41077470881.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41077470881 = 151 ⋅272036231.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18807477014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18807477019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4701869252 + ... + 4701869255.

It is an arithmetic number, because the mean of its divisors is an integer number (7052803881).

Almost surely, 2^18807477014 is an apocalyptic number.

18807477014 is a deficient number, since it is larger than the sum of its proper divisors (9403738510).

18807477014 is an equidigital number, since it uses as much as digits as its factorization.

18807477014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9403738509.

The product of its (nonzero) digits is 351232, while the sum is 47.

The spelling of 18807477014 in words is "eighteen billion, eight hundred seven million, four hundred seventy-seven thousand, fourteen".