634342787243467 has 2 divisors, whose sum is σ = 634342787243468. Its totient is φ = 634342787243466.

The previous prime is 634342787243419. The next prime is 634342787243483. The reversal of 634342787243467 is 764342787243436.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-634342787243467 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 634342787243396 and 634342787243405.

It is not a weakly prime, because it can be changed into another prime (634342787243167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317171393621733 + 317171393621734.

It is an arithmetic number, because the mean of its divisors is an integer number (317171393621734).

Almost surely, 2^{634342787243467} is an apocalyptic number.

634342787243467 is a deficient number, since it is larger than the sum of its proper divisors (1).

634342787243467 is an equidigital number, since it uses as much as digits as its factorization.

634342787243467 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2731180032, while the sum is 70.

The spelling of 634342787243467 in words is "six hundred thirty-four trillion, three hundred forty-two billion, seven hundred eighty-seven million, two hundred forty-three thousand, four hundred sixty-seven".