1808042471 has 2 divisors, whose sum is σ = 1808042472. Its totient is φ = 1808042470.

The previous prime is 1808042399. The next prime is 1808042507. The reversal of 1808042471 is 1742408081.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1808042471 - 2¹⁰ = 1808041447 is a prime.

It is a super-3 number, since 3×1808042471³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1808044471) 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 as a sum of consecutive naturals, namely, 904021235 + 904021236.

It is an arithmetic number, because the mean of its divisors is an integer number (904021236).

Almost surely, 2^1808042471 is an apocalyptic number.

1808042471 is a deficient number, since it is larger than the sum of its proper divisors (1).

1808042471 is an equidigital number, since it uses as much as digits as its factorization.

1808042471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14336, while the sum is 35.

The square root of 1808042471 is about 42521.0826649557. The cubic root of 1808042471 is about 1218.2494087700.

The spelling of 1808042471 in words is "one billion, eight hundred eight million, forty-two thousand, four hundred seventy-one".