445746366102491 has 2 divisors, whose sum is σ = 445746366102492. Its totient is φ = 445746366102490.

The previous prime is 445746366102341. The next prime is 445746366102503. The reversal of 445746366102491 is 194201663647544.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445746366102491 is a prime.

It is not a weakly prime, because it can be changed into another prime (445746366152491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222873183051245 + 222873183051246.

It is an arithmetic number, because the mean of its divisors is an integer number (222873183051246).

Almost surely, 2^{445746366102491} is an apocalyptic number.

445746366102491 is a deficient number, since it is larger than the sum of its proper divisors (1).

445746366102491 is an equidigital number, since it uses as much as digits as its factorization.

445746366102491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104509440, while the sum is 62.

The spelling of 445746366102491 in words is "four hundred forty-five trillion, seven hundred forty-six billion, three hundred sixty-six million, one hundred two thousand, four hundred ninety-one".