634424423440852 has 24 divisors (see below), whose sum is σ = 1215307598635872. Its totient is φ = 287390523799200.

The previous prime is 634424423440837. The next prime is 634424423440859. The reversal of 634424423440852 is 258044324424436.

It is a super-2 number, since 2×634424423440852² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 634424423440793 and 634424423440802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634424423440859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24605340174 + ... + 24605365957.

It is an arithmetic number, because the mean of its divisors is an integer number (50637816609828).

Almost surely, 2^{634424423440852} is an apocalyptic number.

It is an amenable number.

634424423440852 is a deficient number, since it is larger than the sum of its proper divisors (580883175195020).

634424423440852 is a wasteful number, since it uses less digits than its factorization.

634424423440852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49210706439 (or 49210706437 counting only the distinct ones).

The product of its (nonzero) digits is 70778880, while the sum is 55.

The spelling of 634424423440852 in words is "six hundred thirty-four trillion, four hundred twenty-four billion, four hundred twenty-three million, four hundred forty thousand, eight hundred fifty-two".