83388387673 has 2 divisors, whose sum is σ = 83388387674. Its totient is φ = 83388387672.

The previous prime is 83388387637. The next prime is 83388387697. The reversal of 83388387673 is 37678388338.

Together with previous prime (83388387637) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54327684889 + 29060702784 = 233083^2 + 170472^2 .

It is a cyclic number.

It is not a de Polignac number, because 83388387673 - 2⁹ = 83388387161 is a prime.

It is not a weakly prime, because it can be changed into another prime (83388387773) 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, 41694193836 + 41694193837.

It is an arithmetic number, because the mean of its divisors is an integer number (41694193837).

Almost surely, 2^83388387673 is an apocalyptic number.

It is an amenable number.

83388387673 is a deficient number, since it is larger than the sum of its proper divisors (1).

83388387673 is an equidigital number, since it uses as much as digits as its factorization.

83388387673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97542144, while the sum is 64.

The spelling of 83388387673 in words is "eighty-three billion, three hundred eighty-eight million, three hundred eighty-seven thousand, six hundred seventy-three".