634355027067 has 4 divisors (see below), whose sum is σ = 845806702760. Its totient is φ = 422903351376.

The previous prime is 634355027039. The next prime is 634355027069. The reversal of 634355027067 is 760720553436.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 634355027067 - 2¹⁰ = 634355026043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (634355027069) 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 3 ways as a sum of consecutive naturals, for example, 105725837842 + ... + 105725837847.

It is an arithmetic number, because the mean of its divisors is an integer number (211451675690).

Almost surely, 2^634355027067 is an apocalyptic number.

634355027067 is a deficient number, since it is larger than the sum of its proper divisors (211451675693).

634355027067 is a wasteful number, since it uses less digits than its factorization.

634355027067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211451675692.

The product of its (nonzero) digits is 3175200, while the sum is 48.

The spelling of 634355027067 in words is "six hundred thirty-four billion, three hundred fifty-five million, twenty-seven thousand, sixty-seven".