634216334127 has 16 divisors (see below), whose sum is σ = 874828563840. Its totient is φ = 408209077472.

The previous prime is 634216334047. The next prime is 634216334161. The reversal of 634216334127 is 721433612436.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 634216334127 - 2⁷ = 634216333999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634216334527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1500208 + ... + 1875914.

It is an arithmetic number, because the mean of its divisors is an integer number (54676785240).

Almost surely, 2^634216334127 is an apocalyptic number.

634216334127 is a deficient number, since it is larger than the sum of its proper divisors (240612229713).

634216334127 is a wasteful number, since it uses less digits than its factorization.

634216334127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395142.

The product of its digits is 435456, while the sum is 42.

The spelling of 634216334127 in words is "six hundred thirty-four billion, two hundred sixteen million, three hundred thirty-four thousand, one hundred twenty-seven".