634654664353 has 2 divisors, whose sum is σ = 634654664354. Its totient is φ = 634654664352.

The previous prime is 634654664351. The next prime is 634654664411. The reversal of 634654664353 is 353466456436.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 348249876129 + 286404788224 = 590127^2 + 535168^2 .

It is a cyclic number.

It is not a de Polignac number, because 634654664353 - 2¹ = 634654664351 is a prime.

Together with 634654664351, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 634654664294 and 634654664303.

It is not a weakly prime, because it can be changed into another prime (634654664351) 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, 317327332176 + 317327332177.

It is an arithmetic number, because the mean of its divisors is an integer number (317327332177).

Almost surely, 2^634654664353 is an apocalyptic number.

It is an amenable number.

634654664353 is a deficient number, since it is larger than the sum of its proper divisors (1).

634654664353 is an equidigital number, since it uses as much as digits as its factorization.

634654664353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55987200, while the sum is 55.

The spelling of 634654664353 in words is "six hundred thirty-four billion, six hundred fifty-four million, six hundred sixty-four thousand, three hundred fifty-three".