18768382279 has 16 divisors (see below), whose sum is σ = 19969907616. Its totient is φ = 17577907200.

The previous prime is 18768382277. The next prime is 18768382289. The reversal of 18768382279 is 97228386781.

It is a cyclic number.

It is not a de Polignac number, because 18768382279 - 2¹ = 18768382277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18768382277) 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, 3188419 + ... + 3194299.

It is an arithmetic number, because the mean of its divisors is an integer number (1248119226).

Almost surely, 2^18768382279 is an apocalyptic number.

18768382279 is a deficient number, since it is larger than the sum of its proper divisors (1201525337).

18768382279 is a wasteful number, since it uses less digits than its factorization.

18768382279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6786.

The product of its digits is 16257024, while the sum is 61.

It can be divided in two parts, 187683 and 82279, that added together give a palindrome (269962).

The spelling of 18768382279 in words is "eighteen billion, seven hundred sixty-eight million, three hundred eighty-two thousand, two hundred seventy-nine".