634348865229 has 12 divisors (see below), whose sum is σ = 875969661216. Its totient is φ = 408316509328.

The previous prime is 634348865219. The next prime is 634348865243. The reversal of 634348865229 is 922568843436.

It is a de Polignac number, because none of the positive numbers 2^k-634348865229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634348865219) 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 11 ways as a sum of consecutive naturals, for example, 125710689 + ... + 125715734.

It is an arithmetic number, because the mean of its divisors is an integer number (72997471768).

Almost surely, 2^634348865229 is an apocalyptic number.

It is an amenable number.

634348865229 is a deficient number, since it is larger than the sum of its proper divisors (241620795987).

634348865229 is a wasteful number, since it uses less digits than its factorization.

634348865229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251426484 (or 251426455 counting only the distinct ones).

The product of its digits is 59719680, while the sum is 60.

The spelling of 634348865229 in words is "six hundred thirty-four billion, three hundred forty-eight million, eight hundred sixty-five thousand, two hundred twenty-nine".