18074324137 has 2 divisors, whose sum is σ = 18074324138. Its totient is φ = 18074324136.

The previous prime is 18074324111. The next prime is 18074324167. The reversal of 18074324137 is 73142347081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13387415616 + 4686908521 = 115704^2 + 68461^2 .

It is a cyclic number.

It is not a de Polignac number, because 18074324137 - 2¹⁵ = 18074291369 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18074324137.

It is not a weakly prime, because it can be changed into another prime (18074324167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9037162068 + 9037162069.

It is an arithmetic number, because the mean of its divisors is an integer number (9037162069).

Almost surely, 2^18074324137 is an apocalyptic number.

It is an amenable number.

18074324137 is a deficient number, since it is larger than the sum of its proper divisors (1).

18074324137 is an equidigital number, since it uses as much as digits as its factorization.

18074324137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112896, while the sum is 40.

The spelling of 18074324137 in words is "eighteen billion, seventy-four million, three hundred twenty-four thousand, one hundred thirty-seven".