634425112334550 has 24 divisors (see below), whose sum is σ = 1573374278590056. Its totient is φ = 169180029955840.

The previous prime is 634425112334537. The next prime is 634425112334569. The reversal of 634425112334550 is 55433211524436.

It is a super-2 number, since 2×634425112334550² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 634425112334550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2114750374299 + ... + 2114750374598.

It is an arithmetic number, because the mean of its divisors is an integer number (65557261607919).

Almost surely, 2^{634425112334550} is an apocalyptic number.

634425112334550 is an abundant number, since it is smaller than the sum of its proper divisors (938949166255506).

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

634425112334550 is a wasteful number, since it uses less digits than its factorization.

634425112334550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4229500748912 (or 4229500748907 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 48.

Adding to 634425112334550 its reverse (55433211524436), we get a palindrome (689858323858986).

The spelling of 634425112334550 in words is "six hundred thirty-four trillion, four hundred twenty-five billion, one hundred twelve million, three hundred thirty-four thousand, five hundred fifty".