451442052242 has 8 divisors (see below), whose sum is σ = 693679251132. Its totient is φ = 220215635200.

The previous prime is 451442052221. The next prime is 451442052343. The reversal of 451442052242 is 242250244154.

It can be written as a sum of positive squares in 2 ways, for example, as 451287024841 + 155027401 = 671779^2 + 12451^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2752695359 + ... + 2752695522.

Almost surely, 2^451442052242 is an apocalyptic number.

451442052242 is a deficient number, since it is larger than the sum of its proper divisors (242237198890).

451442052242 is a wasteful number, since it uses less digits than its factorization.

451442052242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5505390924.

The product of its (nonzero) digits is 102400, while the sum is 35.

Adding to 451442052242 its reverse (242250244154), we get a palindrome (693692296396).

The spelling of 451442052242 in words is "four hundred fifty-one billion, four hundred forty-two million, fifty-two thousand, two hundred forty-two".