18145741051937 has 2 divisors, whose sum is σ = 18145741051938. Its totient is φ = 18145741051936.

The previous prime is 18145741051901. The next prime is 18145741052029. The reversal of 18145741051937 is 73915014754181.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18075728421136 + 70012630801 = 4251556^2 + 264599^2 .

It is a cyclic number.

It is not a de Polignac number, because 18145741051937 - 2⁶ = 18145741051873 is a prime.

It is not a weakly prime, because it can be changed into another prime (18145741551937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9072870525968 + 9072870525969.

It is an arithmetic number, because the mean of its divisors is an integer number (9072870525969).

Almost surely, 2^{18145741051937} is an apocalyptic number.

It is an amenable number.

18145741051937 is a deficient number, since it is larger than the sum of its proper divisors (1).

18145741051937 is an equidigital number, since it uses as much as digits as its factorization.

18145741051937 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4233600, while the sum is 56.

The spelling of 18145741051937 in words is "eighteen trillion, one hundred forty-five billion, seven hundred forty-one million, fifty-one thousand, nine hundred thirty-seven".