18148414444 has 12 divisors (see below), whose sum is σ = 32784232768. Its totient is φ = 8781490800.

The previous prime is 18148414439. The next prime is 18148414457. The reversal of 18148414444 is 44441484181.

It is a super-4 number, since 4×18148414444⁴ (a number of 42 digits) contains 4444 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 18148414444.

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, 73178967 + ... + 73179214.

Almost surely, 2^18148414444 is an apocalyptic number.

It is an amenable number.

18148414444 is a deficient number, since it is larger than the sum of its proper divisors (14635818324).

18148414444 is a wasteful number, since it uses less digits than its factorization.

18148414444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146358216 (or 146358214 counting only the distinct ones).

The product of its digits is 262144, while the sum is 43.

The spelling of 18148414444 in words is "eighteen billion, one hundred forty-eight million, four hundred fourteen thousand, four hundred forty-four".