634791435133 has 2 divisors, whose sum is σ = 634791435134. Its totient is φ = 634791435132.

The previous prime is 634791435119. The next prime is 634791435149. The reversal of 634791435133 is 331534197436.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 377583212484 + 257208222649 = 614478^2 + 507157^2 .

It is a cyclic number.

It is not a de Polignac number, because 634791435133 - 2³³ = 626201500541 is a prime.

It is a super-2 number, since 2×634791435133² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (634791435163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317395717566 + 317395717567.

It is an arithmetic number, because the mean of its divisors is an integer number (317395717567).

Almost surely, 2^634791435133 is an apocalyptic number.

It is an amenable number.

634791435133 is a deficient number, since it is larger than the sum of its proper divisors (1).

634791435133 is an equidigital number, since it uses as much as digits as its factorization.

634791435133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2449440, while the sum is 49.

The spelling of 634791435133 in words is "six hundred thirty-four billion, seven hundred ninety-one million, four hundred thirty-five thousand, one hundred thirty-three".