16361486489 has 2 divisors, whose sum is σ = 16361486490. Its totient is φ = 16361486488.

The previous prime is 16361486467. The next prime is 16361486513. The reversal of 16361486489 is 98468416361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12118266889 + 4243219600 = 110083^2 + 65140^2 .

It is a cyclic number.

It is not a de Polignac number, because 16361486489 - 2¹² = 16361482393 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (16361480489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8180743244 + 8180743245.

It is an arithmetic number, because the mean of its divisors is an integer number (8180743245).

Almost surely, 2^16361486489 is an apocalyptic number.

It is an amenable number.

16361486489 is a deficient number, since it is larger than the sum of its proper divisors (1).

16361486489 is an equidigital number, since it uses as much as digits as its factorization.

16361486489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5971968, while the sum is 56.

The spelling of 16361486489 in words is "sixteen billion, three hundred sixty-one million, four hundred eighty-six thousand, four hundred eighty-nine".