16452772047209 has 2 divisors, whose sum is σ = 16452772047210. Its totient is φ = 16452772047208.

The previous prime is 16452772047109. The next prime is 16452772047211. The reversal of 16452772047209 is 90274027725461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16014627341584 + 438144705625 = 4001828^2 + 661925^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16452772047209 is a prime.

Together with 16452772047211, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16452772047109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8226386023604 + 8226386023605.

It is an arithmetic number, because the mean of its divisors is an integer number (8226386023605).

Almost surely, 2^{16452772047209} is an apocalyptic number.

It is an amenable number.

16452772047209 is a deficient number, since it is larger than the sum of its proper divisors (1).

16452772047209 is an equidigital number, since it uses as much as digits as its factorization.

16452772047209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11854080, while the sum is 56.

The spelling of 16452772047209 in words is "sixteen trillion, four hundred fifty-two billion, seven hundred seventy-two million, forty-seven thousand, two hundred nine".