1804540666774 has 8 divisors (see below), whose sum is σ = 2769760093320. Its totient is φ = 881287302336.

The previous prime is 1804540666771. The next prime is 1804540666787. The reversal of 1804540666774 is 4776660454081.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1804540666771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10491515419 + ... + 10491515590.

It is an arithmetic number, because the mean of its divisors is an integer number (346220011665).

Almost surely, 2^{1804540666774} is an apocalyptic number.

1804540666774 is a deficient number, since it is larger than the sum of its proper divisors (965219426546).

1804540666774 is a wasteful number, since it uses less digits than its factorization.

1804540666774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20983031054.

The product of its (nonzero) digits is 27095040, while the sum is 58.

The spelling of 1804540666774 in words is "one trillion, eight hundred four billion, five hundred forty million, six hundred sixty-six thousand, seven hundred seventy-four".