1818448035671 has 2 divisors, whose sum is σ = 1818448035672. Its totient is φ = 1818448035670.

The previous prime is 1818448035661. The next prime is 1818448035731. The reversal of 1818448035671 is 1765308448181.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1818448035671 - 2²⁶ = 1818380926807 is a prime.

It is a super-3 number, since 3×1818448035671³ (a number of 38 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1818448035611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 909224017835 + 909224017836.

It is an arithmetic number, because the mean of its divisors is an integer number (909224017836).

Almost surely, 2^{1818448035671} is an apocalyptic number.

1818448035671 is a deficient number, since it is larger than the sum of its proper divisors (1).

1818448035671 is an equidigital number, since it uses as much as digits as its factorization.

1818448035671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5160960, while the sum is 56.

The spelling of 1818448035671 in words is "one trillion, eight hundred eighteen billion, four hundred forty-eight million, thirty-five thousand, six hundred seventy-one".