1618107441473 has 2 divisors, whose sum is σ = 1618107441474. Its totient is φ = 1618107441472.

The previous prime is 1618107441463. The next prime is 1618107441529. The reversal of 1618107441473 is 3741447018161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1530495585424 + 87611856049 = 1237132^2 + 295993^2 .

It is a cyclic number.

It is not a de Polignac number, because 1618107441473 - 2¹⁸ = 1618107179329 is a prime.

It is not a weakly prime, because it can be changed into another prime (1618107441463) 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 as a sum of consecutive naturals, namely, 809053720736 + 809053720737.

It is an arithmetic number, because the mean of its divisors is an integer number (809053720737).

Almost surely, 2^{1618107441473} is an apocalyptic number.

It is an amenable number.

1618107441473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1618107441473 is an equidigital number, since it uses as much as digits as its factorization.

1618107441473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 451584, while the sum is 47.

The spelling of 1618107441473 in words is "one trillion, six hundred eighteen billion, one hundred seven million, four hundred forty-one thousand, four hundred seventy-three".