634461732067 has 2 divisors, whose sum is σ = 634461732068. Its totient is φ = 634461732066.

The previous prime is 634461732007. The next prime is 634461732133. The reversal of 634461732067 is 760237164436.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-634461732067 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 634461732067.

It is not a weakly prime, because it can be changed into another prime (634461732007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317230866033 + 317230866034.

It is an arithmetic number, because the mean of its divisors is an integer number (317230866034).

Almost surely, 2^634461732067 is an apocalyptic number.

634461732067 is a deficient number, since it is larger than the sum of its proper divisors (1).

634461732067 is an equidigital number, since it uses as much as digits as its factorization.

634461732067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3048192, while the sum is 49.

The spelling of 634461732067 in words is "six hundred thirty-four billion, four hundred sixty-one million, seven hundred thirty-two thousand, sixty-seven".