634140001343 has 2 divisors, whose sum is σ = 634140001344. Its totient is φ = 634140001342.

The previous prime is 634140001321. The next prime is 634140001421. The reversal of 634140001343 is 343100041436.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 634140001343 - 2¹⁸ = 634139739199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (634140001043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317070000671 + 317070000672.

It is an arithmetic number, because the mean of its divisors is an integer number (317070000672).

Almost surely, 2^634140001343 is an apocalyptic number.

634140001343 is a deficient number, since it is larger than the sum of its proper divisors (1).

634140001343 is an equidigital number, since it uses as much as digits as its factorization.

634140001343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 634140001343 its reverse (343100041436), we get a palindrome (977240042779).

The spelling of 634140001343 in words is "six hundred thirty-four billion, one hundred forty million, one thousand, three hundred forty-three".