83911605629 has 2 divisors, whose sum is σ = 83911605630. Its totient is φ = 83911605628.

The previous prime is 83911605623. The next prime is 83911605667. The reversal of 83911605629 is 92650611938.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83911605625 + 4 = 289675^2 + 2^2 .

It is a cyclic number.

It is not a de Polignac number, because 83911605629 - 2⁸ = 83911605373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83911605623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41955802814 + 41955802815.

It is an arithmetic number, because the mean of its divisors is an integer number (41955802815).

Almost surely, 2^83911605629 is an apocalyptic number.

It is an amenable number.

83911605629 is a deficient number, since it is larger than the sum of its proper divisors (1).

83911605629 is an equidigital number, since it uses as much as digits as its factorization.

83911605629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 699840, while the sum is 50.

The spelling of 83911605629 in words is "eighty-three billion, nine hundred eleven million, six hundred five thousand, six hundred twenty-nine".