18782834838730 has 16 divisors (see below), whose sum is σ = 35588529168480. Its totient is φ = 7117705833552.

The previous prime is 18782834838727. The next prime is 18782834838737. The reversal of 18782834838730 is 3783843828781.

It is a self number, because there is not a number n which added to its sum of digits gives 18782834838730.

It is not an unprimeable number, because it can be changed into a prime (18782834838737) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 49428512544 + ... + 49428512923.

It is an arithmetic number, because the mean of its divisors is an integer number (2224283073030).

Almost surely, 2^{18782834838730} is an apocalyptic number.

18782834838730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18782834838730 is a deficient number, since it is larger than the sum of its proper divisors (16805694329750).

18782834838730 is a wasteful number, since it uses less digits than its factorization.

18782834838730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98857025493.

The product of its (nonzero) digits is 346816512, while the sum is 70.

The spelling of 18782834838730 in words is "eighteen trillion, seven hundred eighty-two billion, eight hundred thirty-four million, eight hundred thirty-eight thousand, seven hundred thirty".