83073189557 has 2 divisors, whose sum is σ = 83073189558. Its totient is φ = 83073189556.

The previous prime is 83073189509. The next prime is 83073189569. The reversal of 83073189557 is 75598137038.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83062698436 + 10491121 = 288206^2 + 3239^2 .

It is a cyclic number.

It is not a de Polignac number, because 83073189557 - 2⁸ = 83073189301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83073186557) 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, 41536594778 + 41536594779.

It is an arithmetic number, because the mean of its divisors is an integer number (41536594779).

Almost surely, 2^83073189557 is an apocalyptic number.

It is an amenable number.

83073189557 is a deficient number, since it is larger than the sum of its proper divisors (1).

83073189557 is an equidigital number, since it uses as much as digits as its factorization.

83073189557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6350400, while the sum is 56.

The spelling of 83073189557 in words is "eighty-three billion, seventy-three million, one hundred eighty-nine thousand, five hundred fifty-seven".