80005805837 has 2 divisors, whose sum is σ = 80005805838. Its totient is φ = 80005805836.

The previous prime is 80005805783. The next prime is 80005805863. The reversal of 80005805837 is 73850850008.

Together with previous prime (80005805783) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70388865481 + 9616940356 = 265309^2 + 98066^2 .

It is a cyclic number.

It is not a de Polignac number, because 80005805837 - 2¹⁶ = 80005740301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80005805437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40002902918 + 40002902919.

It is an arithmetic number, because the mean of its divisors is an integer number (40002902919).

Almost surely, 2^80005805837 is an apocalyptic number.

It is an amenable number.

80005805837 is a deficient number, since it is larger than the sum of its proper divisors (1).

80005805837 is an equidigital number, since it uses as much as digits as its factorization.

80005805837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 268800, while the sum is 44.

The spelling of 80005805837 in words is "eighty billion, five million, eight hundred five thousand, eight hundred thirty-seven".