1804694011 has 4 divisors (see below), whose sum is σ = 1883158992. Its totient is φ = 1726229032.

The previous prime is 1804693999. The next prime is 1804694033. The reversal of 1804694011 is 1104964081.

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 1804694011 - 2¹³ = 1804685819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1804694711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39232456 + ... + 39232501.

It is an arithmetic number, because the mean of its divisors is an integer number (470789748).

Almost surely, 2^1804694011 is an apocalyptic number.

1804694011 is a deficient number, since it is larger than the sum of its proper divisors (78464981).

1804694011 is an equidigital number, since it uses as much as digits as its factorization.

1804694011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78464980.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 1804694011 is about 42481.6903030000. The cubic root of 1804694011 is about 1217.4968858414.

The spelling of 1804694011 in words is "one billion, eight hundred four million, six hundred ninety-four thousand, eleven".