1848438673729 has 2 divisors, whose sum is σ = 1848438673730. Its totient is φ = 1848438673728.

The previous prime is 1848438673687. The next prime is 1848438673793. The reversal of 1848438673729 is 9273768348481.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1842643353600 + 5795320129 = 1357440^2 + 76127^2 .

It is a cyclic number.

It is not a de Polignac number, because 1848438673729 - 2³⁷ = 1710999720257 is a prime.

It is not a weakly prime, because it can be changed into another prime (1848438373729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 924219336864 + 924219336865.

It is an arithmetic number, because the mean of its divisors is an integer number (924219336865).

Almost surely, 2^{1848438673729} is an apocalyptic number.

It is an amenable number.

1848438673729 is a deficient number, since it is larger than the sum of its proper divisors (1).

1848438673729 is an equidigital number, since it uses as much as digits as its factorization.

1848438673729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 390168576, while the sum is 70.

The spelling of 1848438673729 in words is "one trillion, eight hundred forty-eight billion, four hundred thirty-eight million, six hundred seventy-three thousand, seven hundred twenty-nine".