1445726241769 has 2 divisors, whose sum is σ = 1445726241770. Its totient is φ = 1445726241768.

The previous prime is 1445726241737. The next prime is 1445726241823. The reversal of 1445726241769 is 9671426275441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1274611646169 + 171114595600 = 1128987^2 + 413660^2 .

It is a cyclic number.

It is not a de Polignac number, because 1445726241769 - 2⁵ = 1445726241737 is a prime.

It is a super-2 number, since 2×1445726241769² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1445726241719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722863120884 + 722863120885.

It is an arithmetic number, because the mean of its divisors is an integer number (722863120885).

Almost surely, 2^{1445726241769} is an apocalyptic number.

It is an amenable number.

1445726241769 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445726241769 is an equidigital number, since it uses as much as digits as its factorization.

1445726241769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20321280, while the sum is 58.

The spelling of 1445726241769 in words is "one trillion, four hundred forty-five billion, seven hundred twenty-six million, two hundred forty-one thousand, seven hundred sixty-nine".