18674862336 has 405 divisors, whose sum is σ = 61135339419. Its totient is φ = 5667397632.

The previous prime is 18674862307. The next prime is 18674862343. The reversal of 18674862336 is 63326847681.

The square root of 18674862336 is 136656.

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

18674862336 is a `hidden beast` number, since 1 + 8 + 6 + 7 + 4 + 8 + 623 + 3 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1878702336 + 16796160000 = 43344^2 + 129600^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 255819996 + ... + 255820068.

Almost surely, 2^18674862336 is an apocalyptic number.

18674862336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

18674862336 is the 136656-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18674862336

18674862336 is an abundant number, since it is smaller than the sum of its proper divisors (42460477083).

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

18674862336 is an frugal number, since it uses more digits than its factorization.

18674862336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200 (or 91 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 54.

The spelling of 18674862336 in words is "eighteen billion, six hundred seventy-four million, eight hundred sixty-two thousand, three hundred thirty-six".