80243824425829 has 2 divisors, whose sum is σ = 80243824425830. Its totient is φ = 80243824425828.

The previous prime is 80243824425781. The next prime is 80243824425883. The reversal of 80243824425829 is 92852442834208.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70410727032100 + 9833097393729 = 8391110^2 + 3135777^2 .

It is a cyclic number.

It is not a de Polignac number, because 80243824425829 - 2²³ = 80243816037221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80243824425889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40121912212914 + 40121912212915.

It is an arithmetic number, because the mean of its divisors is an integer number (40121912212915).

Almost surely, 2^{80243824425829} is an apocalyptic number.

It is an amenable number.

80243824425829 is a deficient number, since it is larger than the sum of its proper divisors (1).

80243824425829 is an equidigital number, since it uses as much as digits as its factorization.

80243824425829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70778880, while the sum is 61.

The spelling of 80243824425829 in words is "eighty trillion, two hundred forty-three billion, eight hundred twenty-four million, four hundred twenty-five thousand, eight hundred twenty-nine".