18781882755 has 16 divisors (see below), whose sum is σ = 31632645120. Its totient is φ = 9489793248.

The previous prime is 18781882751. The next prime is 18781882817. The reversal of 18781882755 is 55728818781.

It is not a de Polignac number, because 18781882755 - 2² = 18781882751 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18781882751) 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 15 ways as a sum of consecutive naturals, for example, 32950387 + ... + 32950956.

It is an arithmetic number, because the mean of its divisors is an integer number (1977040320).

Almost surely, 2^18781882755 is an apocalyptic number.

18781882755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18781882755 is a deficient number, since it is larger than the sum of its proper divisors (12850762365).

18781882755 is a wasteful number, since it uses less digits than its factorization.

18781882755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65901370.

The product of its digits is 10035200, while the sum is 60.

The spelling of 18781882755 in words is "eighteen billion, seven hundred eighty-one million, eight hundred eighty-two thousand, seven hundred fifty-five".