18782835781532 has 12 divisors (see below), whose sum is σ = 32870173413000. Its totient is φ = 9391357663536.

The previous prime is 18782835781519. The next prime is 18782835781537. The reversal of 18782835781532 is 23518753828781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18782835781537) 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 3 ways as a sum of consecutive naturals, for example, 14351438 + ... + 15605429.

It is an arithmetic number, because the mean of its divisors is an integer number (2739181117750).

Almost surely, 2^{18782835781532} is an apocalyptic number.

It is an amenable number.

18782835781532 is a deficient number, since it is larger than the sum of its proper divisors (14087337631468).

18782835781532 is a wasteful number, since it uses less digits than its factorization.

18782835781532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30113620 (or 30113618 counting only the distinct ones).

The product of its digits is 180633600, while the sum is 68.

The spelling of 18782835781532 in words is "eighteen trillion, seven hundred eighty-two billion, eight hundred thirty-five million, seven hundred eighty-one thousand, five hundred thirty-two".