80834603909 has 2 divisors, whose sum is σ = 80834603910. Its totient is φ = 80834603908.

The previous prime is 80834603897. The next prime is 80834603921. The reversal of 80834603909 is 90930643808.

It is a balanced prime because it is at equal distance from previous prime (80834603897) and next prime (80834603921).

It can be written as a sum of positive squares in only one way, i.e., 79469301409 + 1365302500 = 281903^2 + 36950^2 .

It is a cyclic number.

It is not a de Polignac number, because 80834603909 - 2¹⁶ = 80834538373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80834603959) 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, 40417301954 + 40417301955.

It is an arithmetic number, because the mean of its divisors is an integer number (40417301955).

Almost surely, 2^80834603909 is an apocalyptic number.

It is an amenable number.

80834603909 is a deficient number, since it is larger than the sum of its proper divisors (1).

80834603909 is an equidigital number, since it uses as much as digits as its factorization.

80834603909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1119744, while the sum is 50.

The spelling of 80834603909 in words is "eighty billion, eight hundred thirty-four million, six hundred three thousand, nine hundred nine".