632605625609 has 2 divisors, whose sum is σ = 632605625610. Its totient is φ = 632605625608.

The previous prime is 632605625503. The next prime is 632605625627. The reversal of 632605625609 is 906526506236.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 525149507584 + 107456118025 = 724672^2 + 327805^2 .

It is a cyclic number.

It is not a de Polignac number, because 632605625609 - 2³⁶ = 563886148873 is a prime.

It is not a weakly prime, because it can be changed into another prime (632605625699) 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, 316302812804 + 316302812805.

It is an arithmetic number, because the mean of its divisors is an integer number (316302812805).

Almost surely, 2^632605625609 is an apocalyptic number.

It is an amenable number.

632605625609 is a deficient number, since it is larger than the sum of its proper divisors (1).

632605625609 is an equidigital number, since it uses as much as digits as its factorization.

632605625609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3499200, while the sum is 50.

The spelling of 632605625609 in words is "six hundred thirty-two billion, six hundred five million, six hundred twenty-five thousand, six hundred nine".