634315722173 has 16 divisors (see below), whose sum is σ = 752295703680. Its totient is φ = 523294892736.

The previous prime is 634315722151. The next prime is 634315722199. The reversal of 634315722173 is 371227513436.

It is not a de Polignac number, because 634315722173 - 2¹⁴ = 634315705789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634315722113) 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, 4864211 + ... + 4992912.

It is an arithmetic number, because the mean of its divisors is an integer number (47018481480).

Almost surely, 2^634315722173 is an apocalyptic number.

It is an amenable number.

634315722173 is a deficient number, since it is larger than the sum of its proper divisors (117979981507).

634315722173 is a wasteful number, since it uses less digits than its factorization.

634315722173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9857476.

The product of its digits is 635040, while the sum is 44.

The spelling of 634315722173 in words is "six hundred thirty-four billion, three hundred fifteen million, seven hundred twenty-two thousand, one hundred seventy-three".