445747157624309 has 2 divisors, whose sum is σ = 445747157624310. Its totient is φ = 445747157624308.

The previous prime is 445747157624207. The next prime is 445747157624347. The reversal of 445747157624309 is 903426751747544.

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., 364608408257284 + 81138749367025 = 19094722^2 + 9007705^2 .

It is a cyclic number.

It is not a de Polignac number, because 445747157624309 - 2⁴⁴ = 428154971579893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445747157624369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222873578812154 + 222873578812155.

It is an arithmetic number, because the mean of its divisors is an integer number (222873578812155).

Almost surely, 2^{445747157624309} is an apocalyptic number.

It is an amenable number.

445747157624309 is a deficient number, since it is larger than the sum of its proper divisors (1).

445747157624309 is an equidigital number, since it uses as much as digits as its factorization.

445747157624309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 711244800, while the sum is 68.

The spelling of 445747157624309 in words is "four hundred forty-five trillion, seven hundred forty-seven billion, one hundred fifty-seven million, six hundred twenty-four thousand, three hundred nine".