1422449343661 has 4 divisors (see below), whose sum is σ = 1422772852572. Its totient is φ = 1422125834752.

The previous prime is 1422449343641. The next prime is 1422449343683. The reversal of 1422449343661 is 1663439442241.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1031910588900 + 390538754761 = 1015830^2 + 624931^2 .

It is a cyclic number.

It is not a de Polignac number, because 1422449343661 - 2⁷ = 1422449343533 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422449343611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161747860 + ... + 161756653.

It is an arithmetic number, because the mean of its divisors is an integer number (355693213143).

Almost surely, 2^{1422449343661} is an apocalyptic number.

It is an amenable number.

1422449343661 is a deficient number, since it is larger than the sum of its proper divisors (323508911).

1422449343661 is an equidigital number, since it uses as much as digits as its factorization.

1422449343661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323508910.

The product of its digits is 2985984, while the sum is 49.

The spelling of 1422449343661 in words is "one trillion, four hundred twenty-two billion, four hundred forty-nine million, three hundred forty-three thousand, six hundred sixty-one".