80336431393 has 2 divisors, whose sum is σ = 80336431394. Its totient is φ = 80336431392.

The previous prime is 80336431369. The next prime is 80336431403. The reversal of 80336431393 is 39313463308.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61232492304 + 19103939089 = 247452^2 + 138217^2 .

It is a cyclic number.

It is not a de Polignac number, because 80336431393 - 2¹⁷ = 80336300321 is a prime.

It is not a weakly prime, because it can be changed into another prime (80336431303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40168215696 + 40168215697.

It is an arithmetic number, because the mean of its divisors is an integer number (40168215697).

Almost surely, 2^80336431393 is an apocalyptic number.

It is an amenable number.

80336431393 is a deficient number, since it is larger than the sum of its proper divisors (1).

80336431393 is an equidigital number, since it uses as much as digits as its factorization.

80336431393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 419904, while the sum is 43.

The spelling of 80336431393 in words is "eighty billion, three hundred thirty-six million, four hundred thirty-one thousand, three hundred ninety-three".