16804947854 has 8 divisors (see below), whose sum is σ = 25743750048. Its totient is φ = 8223697840.

The previous prime is 16804947829. The next prime is 16804947877. The reversal of 16804947854 is 45874940861.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 16804947854.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89387927 + ... + 89388114.

It is an arithmetic number, because the mean of its divisors is an integer number (3217968756).

Almost surely, 2^16804947854 is an apocalyptic number.

16804947854 is a deficient number, since it is larger than the sum of its proper divisors (8938802194).

16804947854 is a wasteful number, since it uses less digits than its factorization.

16804947854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178776090.

The product of its (nonzero) digits is 7741440, while the sum is 56.

The spelling of 16804947854 in words is "sixteen billion, eight hundred four million, nine hundred forty-seven thousand, eight hundred fifty-four".