445680086365091 has 2 divisors, whose sum is σ = 445680086365092. Its totient is φ = 445680086365090.

The previous prime is 445680086365057. The next prime is 445680086365229. The reversal of 445680086365091 is 190563680086544.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445680086365091 is a prime.

It is not a weakly prime, because it can be changed into another prime (445680086364091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222840043182545 + 222840043182546.

It is an arithmetic number, because the mean of its divisors is an integer number (222840043182546).

Almost surely, 2^{445680086365091} is an apocalyptic number.

445680086365091 is a deficient number, since it is larger than the sum of its proper divisors (1).

445680086365091 is an equidigital number, since it uses as much as digits as its factorization.

445680086365091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 149299200, while the sum is 65.

The spelling of 445680086365091 in words is "four hundred forty-five trillion, six hundred eighty billion, eighty-six million, three hundred sixty-five thousand, ninety-one".