634424322515142 has 32 divisors (see below), whose sum is σ = 1269002370303072. Its totient is φ = 211449154904064.

The previous prime is 634424322515063. The next prime is 634424322515149. The reversal of 634424322515142 is 241515223424436.

It is a junction number, because it is equal to n+sod(n) for n = 634424322515091 and 634424322515100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634424322515149) 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 15 ways as a sum of consecutive naturals, for example, 1719901158 + ... + 1720269990.

It is an arithmetic number, because the mean of its divisors is an integer number (39656324071971).

Almost surely, 2^{634424322515142} is an apocalyptic number.

634424322515142 is an abundant number, since it is smaller than the sum of its proper divisors (634578047787930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

634424322515142 is a wasteful number, since it uses less digits than its factorization.

634424322515142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402792.

The product of its digits is 5529600, while the sum is 48.

Adding to 634424322515142 its reverse (241515223424436), we get a palindrome (875939545939578).

The spelling of 634424322515142 in words is "six hundred thirty-four trillion, four hundred twenty-four billion, three hundred twenty-two million, five hundred fifteen thousand, one hundred forty-two".