634115320439 has 2 divisors, whose sum is σ = 634115320440. Its totient is φ = 634115320438.

The previous prime is 634115320379. The next prime is 634115320453. The reversal of 634115320439 is 934023511436.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 634115320439 - 2⁸ = 634115320183 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 634115320396 and 634115320405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (634115320499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317057660219 + 317057660220.

It is an arithmetic number, because the mean of its divisors is an integer number (317057660220).

Almost surely, 2^634115320439 is an apocalyptic number.

634115320439 is a deficient number, since it is larger than the sum of its proper divisors (1).

634115320439 is an equidigital number, since it uses as much as digits as its factorization.

634115320439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 41.

The spelling of 634115320439 in words is "six hundred thirty-four billion, one hundred fifteen million, three hundred twenty thousand, four hundred thirty-nine".