18048519994 has 8 divisors (see below), whose sum is σ = 27088626420. Its totient is φ = 9018977856.

The previous prime is 18048519977. The next prime is 18048520051. The reversal of 18048519994 is 49991584081.

It can be written as a sum of positive squares in 2 ways, for example, as 16272318969 + 1776201025 = 127563^2 + 42145^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2636799 + ... + 2643634.

Almost surely, 2^18048519994 is an apocalyptic number.

18048519994 is a deficient number, since it is larger than the sum of its proper divisors (9040106426).

18048519994 is a wasteful number, since it uses less digits than its factorization.

18048519994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5282144.

The product of its (nonzero) digits is 3732480, while the sum is 58.

The spelling of 18048519994 in words is "eighteen billion, forty-eight million, five hundred nineteen thousand, nine hundred ninety-four".