83760855989 has 2 divisors, whose sum is σ = 83760855990. Its totient is φ = 83760855988.

The previous prime is 83760855967. The next prime is 83760856001. The reversal of 83760855989 is 98955806738.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50831309764 + 32929546225 = 225458^2 + 181465^2 .

It is a cyclic number.

It is not a de Polignac number, because 83760855989 - 2⁸ = 83760855733 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83760855949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41880427994 + 41880427995.

It is an arithmetic number, because the mean of its divisors is an integer number (41880427995).

Almost surely, 2^83760855989 is an apocalyptic number.

It is an amenable number.

83760855989 is a deficient number, since it is larger than the sum of its proper divisors (1).

83760855989 is an equidigital number, since it uses as much as digits as its factorization.

83760855989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 130636800, while the sum is 68.

The spelling of 83760855989 in words is "eighty-three billion, seven hundred sixty million, eight hundred fifty-five thousand, nine hundred eighty-nine".