634697337983 has 2 divisors, whose sum is σ = 634697337984. Its totient is φ = 634697337982.

The previous prime is 634697337889. The next prime is 634697338057. The reversal of 634697337983 is 389733796436.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 634697337983 - 2⁸ = 634697337727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (634697330983) 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, 317348668991 + 317348668992.

It is an arithmetic number, because the mean of its divisors is an integer number (317348668992).

Almost surely, 2^634697337983 is an apocalyptic number.

634697337983 is a deficient number, since it is larger than the sum of its proper divisors (1).

634697337983 is an equidigital number, since it uses as much as digits as its factorization.

634697337983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 370355328, while the sum is 68.

The spelling of 634697337983 in words is "six hundred thirty-four billion, six hundred ninety-seven million, three hundred thirty-seven thousand, nine hundred eighty-three".