18148846334447 has 2 divisors, whose sum is σ = 18148846334448. Its totient is φ = 18148846334446.

The previous prime is 18148846334441. The next prime is 18148846334459. The reversal of 18148846334447 is 74443364884181.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18148846334447 - 2²⁶ = 18148779225583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18148846334441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9074423167223 + 9074423167224.

It is an arithmetic number, because the mean of its divisors is an integer number (9074423167224).

Almost surely, 2^{18148846334447} is an apocalyptic number.

18148846334447 is a deficient number, since it is larger than the sum of its proper divisors (1).

18148846334447 is an equidigital number, since it uses as much as digits as its factorization.

18148846334447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 198180864, while the sum is 65.

The spelling of 18148846334447 in words is "eighteen trillion, one hundred forty-eight billion, eight hundred forty-six million, three hundred thirty-four thousand, four hundred forty-seven".