80365753829 has 2 divisors, whose sum is σ = 80365753830. Its totient is φ = 80365753828.

The previous prime is 80365753729. The next prime is 80365753843. The reversal of 80365753829 is 92835756308.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52576197025 + 27789556804 = 229295^2 + 166702^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80365753829 is a prime.

It is a super-2 number, since 2×80365753829² (a number of 23 digits) contains 22 as substring.

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 (80365753859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40182876914 + 40182876915.

It is an arithmetic number, because the mean of its divisors is an integer number (40182876915).

Almost surely, 2^80365753829 is an apocalyptic number.

It is an amenable number.

80365753829 is a deficient number, since it is larger than the sum of its proper divisors (1).

80365753829 is an equidigital number, since it uses as much as digits as its factorization.

80365753829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10886400, while the sum is 56.

The spelling of 80365753829 in words is "eighty billion, three hundred sixty-five million, seven hundred fifty-three thousand, eight hundred twenty-nine".