18549872914 has 8 divisors (see below), whose sum is σ = 27842777100. Its totient is φ = 9268947216.

The previous prime is 18549872911. The next prime is 18549872917. The reversal of 18549872914 is 41927894581.

It is an interprime number because it is at equal distance from previous prime (18549872911) and next prime (18549872917).

It can be written as a sum of positive squares in 2 ways, for example, as 18291210025 + 258662889 = 135245^2 + 16083^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (18549872911) 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 in 3 ways as a sum of consecutive naturals, for example, 2990749 + ... + 2996944.

Almost surely, 2^18549872914 is an apocalyptic number.

18549872914 is a deficient number, since it is larger than the sum of its proper divisors (9292904186).

18549872914 is a wasteful number, since it uses less digits than its factorization.

18549872914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5989244.

The product of its digits is 5806080, while the sum is 58.

The spelling of 18549872914 in words is "eighteen billion, five hundred forty-nine million, eight hundred seventy-two thousand, nine hundred fourteen".