18073542601 has 2 divisors, whose sum is σ = 18073542602. Its totient is φ = 18073542600.

The previous prime is 18073542581. The next prime is 18073542607. The reversal of 18073542601 is 10624537081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11749476025 + 6324066576 = 108395^2 + 79524^2 .

It is a cyclic number.

It is not a de Polignac number, because 18073542601 - 2²¹ = 18071445449 is a prime.

It is not a weakly prime, because it can be changed into another prime (18073542607) 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, 9036771300 + 9036771301.

It is an arithmetic number, because the mean of its divisors is an integer number (9036771301).

Almost surely, 2^18073542601 is an apocalyptic number.

It is an amenable number.

18073542601 is a deficient number, since it is larger than the sum of its proper divisors (1).

18073542601 is an equidigital number, since it uses as much as digits as its factorization.

18073542601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 37.

The spelling of 18073542601 in words is "eighteen billion, seventy-three million, five hundred forty-two thousand, six hundred one".