1618037594189 has 2 divisors, whose sum is σ = 1618037594190. Its totient is φ = 1618037594188.

The previous prime is 1618037594023. The next prime is 1618037594207. The reversal of 1618037594189 is 9814957308161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1527275788900 + 90761805289 = 1235830^2 + 301267^2 .

It is an emirp because it is prime and its reverse (9814957308161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1618037594189 - 2³⁶ = 1549318117453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1618037594389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 809018797094 + 809018797095.

It is an arithmetic number, because the mean of its divisors is an integer number (809018797095).

Almost surely, 2^{1618037594189} is an apocalyptic number.

It is an amenable number.

1618037594189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1618037594189 is an equidigital number, since it uses as much as digits as its factorization.

1618037594189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13063680, while the sum is 62.

The spelling of 1618037594189 in words is "one trillion, six hundred eighteen billion, thirty-seven million, five hundred ninety-four thousand, one hundred eighty-nine".