16904778703 has 4 divisors (see below), whose sum is σ = 17136351088. Its totient is φ = 16673206320.

The previous prime is 16904778701. The next prime is 16904778731. The reversal of 16904778703 is 30787740961.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16904778703 - 2¹ = 16904778701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16904778701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115786083 + ... + 115786228.

It is an arithmetic number, because the mean of its divisors is an integer number (4284087772).

Almost surely, 2^16904778703 is an apocalyptic number.

16904778703 is a deficient number, since it is larger than the sum of its proper divisors (231572385).

16904778703 is an equidigital number, since it uses as much as digits as its factorization.

16904778703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231572384.

The product of its (nonzero) digits is 1778112, while the sum is 52.

The spelling of 16904778703 in words is "sixteen billion, nine hundred four million, seven hundred seventy-eight thousand, seven hundred three".