17844464149 has 2 divisors, whose sum is σ = 17844464150. Its totient is φ = 17844464148.

The previous prime is 17844464129. The next prime is 17844464167. The reversal of 17844464149 is 94146444871.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17737445124 + 107019025 = 133182^2 + 10345^2 .

It is a cyclic number.

It is not a de Polignac number, because 17844464149 - 2⁵ = 17844464117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 17844464096 and 17844464105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17844464119) 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, 8922232074 + 8922232075.

It is an arithmetic number, because the mean of its divisors is an integer number (8922232075).

Almost surely, 2^17844464149 is an apocalyptic number.

It is an amenable number.

17844464149 is a deficient number, since it is larger than the sum of its proper divisors (1).

17844464149 is an equidigital number, since it uses as much as digits as its factorization.

17844464149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3096576, while the sum is 52.

The spelling of 17844464149 in words is "seventeen billion, eight hundred forty-four million, four hundred sixty-four thousand, one hundred forty-nine".