445458418772249 has 2 divisors, whose sum is σ = 445458418772250. Its totient is φ = 445458418772248.

The previous prime is 445458418772221. The next prime is 445458418772261. The reversal of 445458418772249 is 942277814854544.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 305718405888025 + 139740012884224 = 17484805^2 + 11821168^2 .

It is a cyclic number.

It is not a de Polignac number, because 445458418772249 - 2⁴⁴ = 427866232727833 is a prime.

It is not a weakly prime, because it can be changed into another prime (445458418772449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222729209386124 + 222729209386125.

It is an arithmetic number, because the mean of its divisors is an integer number (222729209386125).

Almost surely, 2^{445458418772249} is an apocalyptic number.

It is an amenable number.

445458418772249 is a deficient number, since it is larger than the sum of its proper divisors (1).

445458418772249 is an equidigital number, since it uses as much as digits as its factorization.

445458418772249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2890137600, while the sum is 74.

The spelling of 445458418772249 in words is "four hundred forty-five trillion, four hundred fifty-eight billion, four hundred eighteen million, seven hundred seventy-two thousand, two hundred forty-nine".