445736202637469 has 2 divisors, whose sum is σ = 445736202637470. Its totient is φ = 445736202637468.

The previous prime is 445736202637423. The next prime is 445736202637547. The reversal of 445736202637469 is 964736202637544.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 404682222391225 + 41053980246244 = 20116715^2 + 6407338^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445736202637469 is a prime.

It is a super-2 number, since 2×445736202637469² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 445736202637399 and 445736202637408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445736202937469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222868101318734 + 222868101318735.

It is an arithmetic number, because the mean of its divisors is an integer number (222868101318735).

Almost surely, 2^{445736202637469} is an apocalyptic number.

It is an amenable number.

445736202637469 is a deficient number, since it is larger than the sum of its proper divisors (1).

445736202637469 is an equidigital number, since it uses as much as digits as its factorization.

445736202637469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1097349120, while the sum is 68.

The spelling of 445736202637469 in words is "four hundred forty-five trillion, seven hundred thirty-six billion, two hundred two million, six hundred thirty-seven thousand, four hundred sixty-nine".