1445223695687 has 2 divisors, whose sum is σ = 1445223695688. Its totient is φ = 1445223695686.

The previous prime is 1445223695599. The next prime is 1445223695717. The reversal of 1445223695687 is 7865963225441.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1445223695687 - 2⁸ = 1445223695431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1445223695387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722611847843 + 722611847844.

It is an arithmetic number, because the mean of its divisors is an integer number (722611847844).

Almost surely, 2^{1445223695687} is an apocalyptic number.

1445223695687 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445223695687 is an equidigital number, since it uses as much as digits as its factorization.

1445223695687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 87091200, while the sum is 62.

The spelling of 1445223695687 in words is "one trillion, four hundred forty-five billion, two hundred twenty-three million, six hundred ninety-five thousand, six hundred eighty-seven".