1804742811 has 12 divisors (see below), whose sum is σ = 2607225192. Its totient is φ = 1202989056.

The previous prime is 1804742783. The next prime is 1804742827. The reversal of 1804742811 is 1182474081.

1804742811 is a `hidden beast` number, since 180 + 47 + 428 + 11 = 666.

It is not a de Polignac number, because 1804742811 - 2¹⁹ = 1804218523 is a prime.

It is a super-2 number, since 2×1804742811² = 6514193227712363442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1804742881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97480 + ... + 114506.

It is an arithmetic number, because the mean of its divisors is an integer number (217268766).

Almost surely, 2^1804742811 is an apocalyptic number.

1804742811 is a deficient number, since it is larger than the sum of its proper divisors (802482381).

1804742811 is a wasteful number, since it uses less digits than its factorization.

1804742811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28810 (or 28807 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

The square root of 1804742811 is about 42482.2646642102. The cubic root of 1804742811 is about 1217.5078596892.

The spelling of 1804742811 in words is "one billion, eight hundred four million, seven hundred forty-two thousand, eight hundred eleven".