1445044474477 has 2 divisors, whose sum is σ = 1445044474478. Its totient is φ = 1445044474476.

The previous prime is 1445044474381. The next prime is 1445044474501. The reversal of 1445044474477 is 7744744405441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1320766368516 + 124278105961 = 1149246^2 + 352531^2 .

It is an emirp because it is prime and its reverse (7744744405441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1445044474477 - 2³⁹ = 895288660589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1445044474277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722522237238 + 722522237239.

It is an arithmetic number, because the mean of its divisors is an integer number (722522237239).

Almost surely, 2^{1445044474477} is an apocalyptic number.

It is an amenable number.

1445044474477 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445044474477 is an equidigital number, since it uses as much as digits as its factorization.

1445044474477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28098560, while the sum is 55.

The spelling of 1445044474477 in words is "one trillion, four hundred forty-five billion, forty-four million, four hundred seventy-four thousand, four hundred seventy-seven".