634424335111442 has 8 divisors (see below), whose sum is σ = 951652006614732. Its totient is φ = 317206999573200.

The previous prime is 634424335111381. The next prime is 634424335111447. The reversal of 634424335111442 is 244111533424436.

It can be written as a sum of positive squares in 2 ways, for example, as 620015926214161 + 14408408897281 = 24900119^2 + 3795841^2 .

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

It is not an unprimeable number, because it can be changed into a prime (634424335111447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2583837809 + ... + 2584083332.

Almost surely, 2^{634424335111442} is an apocalyptic number.

634424335111442 is a deficient number, since it is larger than the sum of its proper divisors (317227671503290).

634424335111442 is a wasteful number, since it uses less digits than its factorization.

634424335111442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5167982524.

The product of its digits is 3317760, while the sum is 47.

Adding to 634424335111442 its reverse (244111533424436), we get a palindrome (878535868535878).

The spelling of 634424335111442 in words is "six hundred thirty-four trillion, four hundred twenty-four billion, three hundred thirty-five million, one hundred eleven thousand, four hundred forty-two".