18463801441 has 2 divisors, whose sum is σ = 18463801442. Its totient is φ = 18463801440.

The previous prime is 18463801417. The next prime is 18463801459. The reversal of 18463801441 is 14410836481.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13781820816 + 4681980625 = 117396^2 + 68425^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18463801441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18463801394 and 18463801403.

It is not a weakly prime, because it can be changed into another prime (18463801141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9231900720 + 9231900721.

It is an arithmetic number, because the mean of its divisors is an integer number (9231900721).

Almost surely, 2^18463801441 is an apocalyptic number.

It is an amenable number.

18463801441 is a deficient number, since it is larger than the sum of its proper divisors (1).

18463801441 is an equidigital number, since it uses as much as digits as its factorization.

18463801441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73728, while the sum is 40.

The spelling of 18463801441 in words is "eighteen billion, four hundred sixty-three million, eight hundred one thousand, four hundred forty-one".