18828230656 has 69 divisors (see below), whose sum is σ = 38226882099. Its totient is φ = 9273606144.

The previous prime is 18828230653. The next prime is 18828230669. The reversal of 18828230656 is 65603282881.

The square root of 18828230656 is 137216.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18828230651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 281018335 + ... + 281018401.

Almost surely, 2^18828230656 is an apocalyptic number.

18828230656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

18828230656 is the 137216-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18828230656

18828230656 is an abundant number, since it is smaller than the sum of its proper divisors (19398651443).

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

18828230656 is an frugal number, since it uses more digits than its factorization.

18828230656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 49.

Multiplying 18828230656 by its sum of digits (49), we get a square (922583302144 = 960512²).

The spelling of 18828230656 in words is "eighteen billion, eight hundred twenty-eight million, two hundred thirty thousand, six hundred fifty-six".