634346413451 has 2 divisors, whose sum is σ = 634346413452. Its totient is φ = 634346413450.

The previous prime is 634346413433. The next prime is 634346413483. The reversal of 634346413451 is 154314643436.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-634346413451 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (634346413751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317173206725 + 317173206726.

It is an arithmetic number, because the mean of its divisors is an integer number (317173206726).

Almost surely, 2^634346413451 is an apocalyptic number.

634346413451 is a deficient number, since it is larger than the sum of its proper divisors (1).

634346413451 is an equidigital number, since it uses as much as digits as its factorization.

634346413451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1244160, while the sum is 44.

The spelling of 634346413451 in words is "six hundred thirty-four billion, three hundred forty-six million, four hundred thirteen thousand, four hundred fifty-one".