18614219472 has 80 divisors (see below), whose sum is σ = 53814264000. Its totient is φ = 6160081536.

The previous prime is 18614219453. The next prime is 18614219489. The reversal of 18614219472 is 27491241681.

18614219472 is a `hidden beast` number, since 1 + 8 + 614 + 21 + 9 + 4 + 7 + 2 = 666.

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, 94947 + ... + 215042.

It is an arithmetic number, because the mean of its divisors is an integer number (672678300).

Almost surely, 2^18614219472 is an apocalyptic number.

18614219472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18614219472 is an abundant number, since it is smaller than the sum of its proper divisors (35200044528).

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

18614219472 is a wasteful number, since it uses less digits than its factorization.

18614219472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310145 (or 310133 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The spelling of 18614219472 in words is "eighteen billion, six hundred fourteen million, two hundred nineteen thousand, four hundred seventy-two".