445765417672643 has 2 divisors, whose sum is σ = 445765417672644. Its totient is φ = 445765417672642.

The previous prime is 445765417672639. The next prime is 445765417672651. The reversal of 445765417672643 is 346276714567544.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 445765417672643 - 2² = 445765417672639 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (445765417672243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222882708836321 + 222882708836322.

It is an arithmetic number, because the mean of its divisors is an integer number (222882708836322).

Almost surely, 2^{445765417672643} is an apocalyptic number.

445765417672643 is a deficient number, since it is larger than the sum of its proper divisors (1).

445765417672643 is an equidigital number, since it uses as much as digits as its factorization.

445765417672643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2844979200, while the sum is 71.

The spelling of 445765417672643 in words is "four hundred forty-five trillion, seven hundred sixty-five billion, four hundred seventeen million, six hundred seventy-two thousand, six hundred forty-three".