16804933778 has 32 divisors (see below), whose sum is σ = 26225472000. Its totient is φ = 8067600000.

The previous prime is 16804933771. The next prime is 16804933793. The reversal of 16804933778 is 87733940861.

It is not an unprimeable number, because it can be changed into a prime (16804933771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5598278 + ... + 5601278.

It is an arithmetic number, because the mean of its divisors is an integer number (819546000).

Almost surely, 2^16804933778 is an apocalyptic number.

16804933778 is a deficient number, since it is larger than the sum of its proper divisors (9420538222).

16804933778 is a wasteful number, since it uses less digits than its factorization.

16804933778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3714.

The product of its (nonzero) digits is 6096384, while the sum is 56.

The spelling of 16804933778 in words is "sixteen billion, eight hundred four million, nine hundred thirty-three thousand, seven hundred seventy-eight".