31600063421629 has 2 divisors, whose sum is σ = 31600063421630. Its totient is φ = 31600063421628.

The previous prime is 31600063421609. The next prime is 31600063421653. The reversal of 31600063421629 is 92612436000613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30943798171225 + 656265250404 = 5562715^2 + 810102^2 .

It is an emirp because it is prime and its reverse (92612436000613) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31600063421629 - 2³⁹ = 31050307607741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31600063421609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15800031710814 + 15800031710815.

It is an arithmetic number, because the mean of its divisors is an integer number (15800031710815).

Almost surely, 2^{31600063421629} is an apocalyptic number.

It is an amenable number.

31600063421629 is a deficient number, since it is larger than the sum of its proper divisors (1).

31600063421629 is an equidigital number, since it uses as much as digits as its factorization.

31600063421629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 279936, while the sum is 43.

The spelling of 31600063421629 in words is "thirty-one trillion, six hundred billion, sixty-three million, four hundred twenty-one thousand, six hundred twenty-nine".