16904512443 has 64 divisors (see below), whose sum is σ = 28798156800. Its totient is φ = 8580055680.

The previous prime is 16904512393. The next prime is 16904512447. The reversal of 16904512443 is 34421540961.

It is not a de Polignac number, because 16904512443 - 2⁸ = 16904512187 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (16904512447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1509298 + ... + 1520456.

It is an arithmetic number, because the mean of its divisors is an integer number (449971200).

Almost surely, 2^16904512443 is an apocalyptic number.

16904512443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

16904512443 is a deficient number, since it is larger than the sum of its proper divisors (11893644357).

16904512443 is a wasteful number, since it uses less digits than its factorization.

16904512443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11392.

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 16904512443 in words is "sixteen billion, nine hundred four million, five hundred twelve thousand, four hundred forty-three".