16782438512 has 40 divisors (see below), whose sum is σ = 37316659200. Its totient is φ = 7162368192.

The previous prime is 16782438511. The next prime is 16782438521. The reversal of 16782438512 is 21583428761.

16782438512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×16782438512³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16782438511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286712 + ... + 340247.

It is an arithmetic number, because the mean of its divisors is an integer number (932916480).

Almost surely, 2^16782438512 is an apocalyptic number.

It is an amenable number.

16782438512 is an abundant number, since it is smaller than the sum of its proper divisors (20534220688).

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

16782438512 is a wasteful number, since it uses less digits than its factorization.

16782438512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627213 (or 627207 counting only the distinct ones).

The product of its digits is 645120, while the sum is 47.

The spelling of 16782438512 in words is "sixteen billion, seven hundred eighty-two million, four hundred thirty-eight thousand, five hundred twelve".