80726605033 has 2 divisors, whose sum is σ = 80726605034. Its totient is φ = 80726605032.

The previous prime is 80726605031. The next prime is 80726605049. The reversal of 80726605033 is 33050662708.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80725879129 + 725904 = 284123^2 + 852^2 .

It is a cyclic number.

It is not a de Polignac number, because 80726605033 - 2¹ = 80726605031 is a prime.

Together with 80726605031, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (80726605031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40363302516 + 40363302517.

It is an arithmetic number, because the mean of its divisors is an integer number (40363302517).

Almost surely, 2^80726605033 is an apocalyptic number.

It is an amenable number.

80726605033 is a deficient number, since it is larger than the sum of its proper divisors (1).

80726605033 is an equidigital number, since it uses as much as digits as its factorization.

80726605033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 80726605033 in words is "eighty billion, seven hundred twenty-six million, six hundred five thousand, thirty-three".