634430043243236 has 24 divisors (see below), whose sum is σ = 1116021542160000. Its totient is φ = 315567287792064.

The previous prime is 634430043243223. The next prime is 634430043243307. The reversal of 634430043243236 is 632342340034436.

It is a super-2 number, since 2×634430043243236² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63105881 + ... + 72465248.

It is an arithmetic number, because the mean of its divisors is an integer number (46500897590000).

Almost surely, 2^{634430043243236} is an apocalyptic number.

It is an amenable number.

634430043243236 is a deficient number, since it is larger than the sum of its proper divisors (481591498916764).

634430043243236 is a wasteful number, since it uses less digits than its factorization.

634430043243236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135577211 (or 135577209 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 47.

The spelling of 634430043243236 in words is "six hundred thirty-four trillion, four hundred thirty billion, forty-three million, two hundred forty-three thousand, two hundred thirty-six".