80814073381 has 2 divisors, whose sum is σ = 80814073382. Its totient is φ = 80814073380.

The previous prime is 80814073309. The next prime is 80814073393. The reversal of 80814073381 is 18337041808.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40590160900 + 40223912481 = 201470^2 + 200559^2 .

It is a cyclic number.

It is not a de Polignac number, because 80814073381 - 2²⁹ = 80277202469 is a prime.

It is a super-2 number, since 2×80814073381² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80814074381) 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, 40407036690 + 40407036691.

It is an arithmetic number, because the mean of its divisors is an integer number (40407036691).

Almost surely, 2^80814073381 is an apocalyptic number.

It is an amenable number.

80814073381 is a deficient number, since it is larger than the sum of its proper divisors (1).

80814073381 is an equidigital number, since it uses as much as digits as its factorization.

80814073381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129024, while the sum is 43.

The spelling of 80814073381 in words is "eighty billion, eight hundred fourteen million, seventy-three thousand, three hundred eighty-one".