83911605623 has 2 divisors, whose sum is σ = 83911605624. Its totient is φ = 83911605622.

The previous prime is 83911605619. The next prime is 83911605629. The reversal of 83911605623 is 32650611938.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83911605623 - 2² = 83911605619 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83911605629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41955802811 + 41955802812.

It is an arithmetic number, because the mean of its divisors is an integer number (41955802812).

Almost surely, 2^83911605623 is an apocalyptic number.

83911605623 is a deficient number, since it is larger than the sum of its proper divisors (1).

83911605623 is an equidigital number, since it uses as much as digits as its factorization.

83911605623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 83911605623 in words is "eighty-three billion, nine hundred eleven million, six hundred five thousand, six hundred twenty-three".