18775027656256 has 63 divisors (see below), whose sum is σ = 38948634307681. Its totient is φ = 8978979747584.

The previous prime is 18775027656227. The next prime is 18775027656311. The reversal of 18775027656256 is 65265672057781.

The square root of 18775027656256 is 4333016.

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

It can be written as a sum of positive squares in only one way, i.e., 14348206656 + 18760679449600 = 119784^2 + 4331360^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18775027656191 and 18775027656200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 797263170 + ... + 797286718.

Almost surely, 2^{18775027656256} is an apocalyptic number.

18775027656256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

18775027656256 is the 4333016-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18775027656256

18775027656256 is an abundant number, since it is smaller than the sum of its proper divisors (20173606651425).

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

18775027656256 is an frugal number, since it uses more digits than its factorization.

18775027656256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47156 (or 23574 counting only the distinct ones).

The product of its (nonzero) digits is 296352000, while the sum is 67.

The spelling of 18775027656256 in words is "eighteen trillion, seven hundred seventy-five billion, twenty-seven million, six hundred fifty-six thousand, two hundred fifty-six".