634115320351 has 2 divisors, whose sum is σ = 634115320352. Its totient is φ = 634115320350.

The previous prime is 634115320297. The next prime is 634115320379. The reversal of 634115320351 is 153023511436.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 634115320351 - 2³⁵ = 599755581983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (634115324351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317057660175 + 317057660176.

It is an arithmetic number, because the mean of its divisors is an integer number (317057660176).

Almost surely, 2^634115320351 is an apocalyptic number.

634115320351 is a deficient number, since it is larger than the sum of its proper divisors (1).

634115320351 is an equidigital number, since it uses as much as digits as its factorization.

634115320351 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 34.

Adding to 634115320351 its reverse (153023511436), we get a palindrome (787138831787).

The spelling of 634115320351 in words is "six hundred thirty-four billion, one hundred fifteen million, three hundred twenty thousand, three hundred fifty-one".