1445133784418 has 4 divisors (see below), whose sum is σ = 2167700676630. Its totient is φ = 722566892208.

The previous prime is 1445133784411. The next prime is 1445133784429. The reversal of 1445133784418 is 8144873315441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 832869788689 + 612263995729 = 912617^2 + 782473^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1445133784418.

It is not an unprimeable number, because it can be changed into a prime (1445133784411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361283446103 + ... + 361283446106.

Almost surely, 2^{1445133784418} is an apocalyptic number.

1445133784418 is a deficient number, since it is larger than the sum of its proper divisors (722566892212).

1445133784418 is an equidigital number, since it uses as much as digits as its factorization.

1445133784418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722566892211.

The product of its digits is 5160960, while the sum is 53.

The spelling of 1445133784418 in words is "one trillion, four hundred forty-five billion, one hundred thirty-three million, seven hundred eighty-four thousand, four hundred eighteen".