16487064343249 has 2 divisors, whose sum is σ = 16487064343250. Its totient is φ = 16487064343248.

The previous prime is 16487064343223. The next prime is 16487064343307. The reversal of 16487064343249 is 94234346078461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16485670665025 + 1393678224 = 4060255^2 + 37332^2 .

It is a cyclic number.

It is not a de Polignac number, because 16487064343249 - 2⁷ = 16487064343121 is a prime.

It is not a weakly prime, because it can be changed into another prime (16487064343349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8243532171624 + 8243532171625.

It is an arithmetic number, because the mean of its divisors is an integer number (8243532171625).

Almost surely, 2^{16487064343249} is an apocalyptic number.

It is an amenable number.

16487064343249 is a deficient number, since it is larger than the sum of its proper divisors (1).

16487064343249 is an equidigital number, since it uses as much as digits as its factorization.

16487064343249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 83607552, while the sum is 61.

The spelling of 16487064343249 in words is "sixteen trillion, four hundred eighty-seven billion, sixty-four million, three hundred forty-three thousand, two hundred forty-nine".