1445662386442 has 4 divisors (see below), whose sum is σ = 2168493579666. Its totient is φ = 722831193220.

The previous prime is 1445662386431. The next prime is 1445662386481. The reversal of 1445662386442 is 2446832665441.

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., 1401687877041 + 43974509401 = 1183929^2 + 209701^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361415596609 + ... + 361415596612.

Almost surely, 2^{1445662386442} is an apocalyptic number.

1445662386442 is a deficient number, since it is larger than the sum of its proper divisors (722831193224).

1445662386442 is an equidigital number, since it uses as much as digits as its factorization.

1445662386442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722831193223.

The product of its digits is 26542080, while the sum is 55.

The spelling of 1445662386442 in words is "one trillion, four hundred forty-five billion, six hundred sixty-two million, three hundred eighty-six thousand, four hundred forty-two".