18672285144 has 64 divisors (see below), whose sum is σ = 47425753440. Its totient is φ = 6125137920.

The previous prime is 18672285139. The next prime is 18672285157. The reversal of 18672285144 is 44158227681.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 18672285093 and 18672285102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 789004 + ... + 812324.

Almost surely, 2^18672285144 is an apocalyptic number.

It is an amenable number.

18672285144 is an abundant number, since it is smaller than the sum of its proper divisors (28753468296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18672285144 is a wasteful number, since it uses less digits than its factorization.

18672285144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23860 (or 23856 counting only the distinct ones).

The product of its digits is 860160, while the sum is 48.

The spelling of 18672285144 in words is "eighteen billion, six hundred seventy-two million, two hundred eighty-five thousand, one hundred forty-four".