445765417672243 has 2 divisors, whose sum is σ = 445765417672244. Its totient is φ = 445765417672242.

The previous prime is 445765417672147. The next prime is 445765417672297. The reversal of 445765417672243 is 342276714567544.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 445765417672243 - 2²¹ = 445765415575091 is a prime.

It is not a weakly prime, because it can be changed into another prime (445765417672643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222882708836121 + 222882708836122.

It is an arithmetic number, because the mean of its divisors is an integer number (222882708836122).

Almost surely, 2^{445765417672243} is an apocalyptic number.

445765417672243 is a deficient number, since it is larger than the sum of its proper divisors (1).

445765417672243 is an equidigital number, since it uses as much as digits as its factorization.

445765417672243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 948326400, while the sum is 67.

The spelling of 445765417672243 in words is "four hundred forty-five trillion, seven hundred sixty-five billion, four hundred seventeen million, six hundred seventy-two thousand, two hundred forty-three".