18241446673 has 2 divisors, whose sum is σ = 18241446674. Its totient is φ = 18241446672.

The previous prime is 18241446659. The next prime is 18241446721. The reversal of 18241446673 is 37664414281.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9384378129 + 8857068544 = 96873^2 + 94112^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18241446673 is a prime.

It is not a weakly prime, because it can be changed into another prime (18241446623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9120723336 + 9120723337.

It is an arithmetic number, because the mean of its divisors is an integer number (9120723337).

Almost surely, 2^18241446673 is an apocalyptic number.

It is an amenable number.

18241446673 is a deficient number, since it is larger than the sum of its proper divisors (1).

18241446673 is an equidigital number, since it uses as much as digits as its factorization.

18241446673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 774144, while the sum is 46.

The spelling of 18241446673 in words is "eighteen billion, two hundred forty-one million, four hundred forty-six thousand, six hundred seventy-three".