18548260864 has 189 divisors, whose sum is σ = 45543828267. Its totient is φ = 7530872832.

The previous prime is 18548260853. The next prime is 18548260889. The reversal of 18548260864 is 46806284581.

It is a happy number.

The square root of 18548260864 is 136192.

It is a perfect power (a square), and thus also a powerful number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 976224247 + ... + 976224265.

Almost surely, 2^18548260864 is an apocalyptic number.

18548260864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18548260864 is the 136192-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18548260864

18548260864 is an abundant number, since it is smaller than the sum of its proper divisors (26995567403).

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

18548260864 is an frugal number, since it uses more digits than its factorization.

18548260864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92 (or 28 counting only the distinct ones).

The product of its (nonzero) digits is 2949120, while the sum is 52.

The spelling of 18548260864 in words is "eighteen billion, five hundred forty-eight million, two hundred sixty thousand, eight hundred sixty-four".