634586012387 has 2 divisors, whose sum is σ = 634586012388. Its totient is φ = 634586012386.

The previous prime is 634586012341. The next prime is 634586012413. The reversal of 634586012387 is 783210685436.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 634586012387 - 2¹⁴ = 634585996003 is a prime.

It is not a weakly prime, because it can be changed into another prime (634586012317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317293006193 + 317293006194.

It is an arithmetic number, because the mean of its divisors is an integer number (317293006194).

Almost surely, 2^634586012387 is an apocalyptic number.

634586012387 is a deficient number, since it is larger than the sum of its proper divisors (1).

634586012387 is an equidigital number, since it uses as much as digits as its factorization.

634586012387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5806080, while the sum is 53.

The spelling of 634586012387 in words is "six hundred thirty-four billion, five hundred eighty-six million, twelve thousand, three hundred eighty-seven".