45212204509889 has 2 divisors, whose sum is σ = 45212204509890. Its totient is φ = 45212204509888.

The previous prime is 45212204509831. The next prime is 45212204509909. The reversal of 45212204509889 is 98890540221254.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28722042897025 + 16490161612864 = 5359295^2 + 4060808^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45212204509889 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 (45212204509819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22606102254944 + 22606102254945.

It is an arithmetic number, because the mean of its divisors is an integer number (22606102254945).

Almost surely, 2^{45212204509889} is an apocalyptic number.

It is an amenable number.

45212204509889 is a deficient number, since it is larger than the sum of its proper divisors (1).

45212204509889 is an equidigital number, since it uses as much as digits as its factorization.

45212204509889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16588800, while the sum is 59.

The spelling of 45212204509889 in words is "forty-five trillion, two hundred twelve billion, two hundred four million, five hundred nine thousand, eight hundred eighty-nine".