18854348144 has 20 divisors (see below), whose sum is σ = 37789965960. Its totient is φ = 9102098880.

The previous prime is 18854348137. The next prime is 18854348179. The reversal of 18854348144 is 44184345881.

It is a junction number, because it is equal to n+sod(n) for n = 18854348092 and 18854348101.

It is a congruent number.

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, 20316722 + ... + 20317649.

It is an arithmetic number, because the mean of its divisors is an integer number (1889498298).

Almost surely, 2^18854348144 is an apocalyptic number.

It is an amenable number.

18854348144 is an abundant number, since it is smaller than the sum of its proper divisors (18935617816).

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

18854348144 is a wasteful number, since it uses less digits than its factorization.

18854348144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40634408 (or 40634402 counting only the distinct ones).

The product of its digits is 1966080, while the sum is 50.

The spelling of 18854348144 in words is "eighteen billion, eight hundred fifty-four million, three hundred forty-eight thousand, one hundred forty-four".