1825381728018 has 24 divisors (see below), whose sum is σ = 3975700525056. Its totient is φ = 605274917400.

The previous prime is 1825381727999. The next prime is 1825381728043. The reversal of 1825381728018 is 8108271835281.

1825381728018 is a `hidden beast` number, since 1 + 8 + 2 + 538 + 17 + 2 + 80 + 18 = 666.

It is a Curzon number.

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 11 ways as a sum of consecutive naturals, for example, 265468018 + ... + 265474893.

It is an arithmetic number, because the mean of its divisors is an integer number (165654188544).

Almost surely, 2^{1825381728018} is an apocalyptic number.

1825381728018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1825381728018 is an abundant number, since it is smaller than the sum of its proper divisors (2150318797038).

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

1825381728018 is a wasteful number, since it uses less digits than its factorization.

1825381728018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530943110 (or 530943107 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 54.

The spelling of 1825381728018 in words is "one trillion, eight hundred twenty-five billion, three hundred eighty-one million, seven hundred twenty-eight thousand, eighteen".