634338116747 has 4 divisors (see below), whose sum is σ = 636696251280. Its totient is φ = 631979982216.

The previous prime is 634338116717. The next prime is 634338116759. The reversal of 634338116747 is 747611833436.

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

It is a cyclic number.

It is not a de Polignac number, because 634338116747 - 2²⁰ = 634337068171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (634338116717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1179066863 + ... + 1179067400.

It is an arithmetic number, because the mean of its divisors is an integer number (159174062820).

Almost surely, 2^634338116747 is an apocalyptic number.

634338116747 is a deficient number, since it is larger than the sum of its proper divisors (2358134533).

634338116747 is a wasteful number, since it uses less digits than its factorization.

634338116747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2358134532.

The product of its digits is 6096384, while the sum is 53.

The spelling of 634338116747 in words is "six hundred thirty-four billion, three hundred thirty-eight million, one hundred sixteen thousand, seven hundred forty-seven".