80554664837 has 2 divisors, whose sum is σ = 80554664838. Its totient is φ = 80554664836.

The previous prime is 80554664783. The next prime is 80554664867. The reversal of 80554664837 is 73846645508.

Together with previous prime (80554664783) 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., 60649405441 + 19905259396 = 246271^2 + 141086^2 .

It is a cyclic number.

It is not a de Polignac number, because 80554664837 - 2¹⁸ = 80554402693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80554664867) 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, 40277332418 + 40277332419.

It is an arithmetic number, because the mean of its divisors is an integer number (40277332419).

Almost surely, 2^80554664837 is an apocalyptic number.

It is an amenable number.

80554664837 is a deficient number, since it is larger than the sum of its proper divisors (1).

80554664837 is an equidigital number, since it uses as much as digits as its factorization.

80554664837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19353600, while the sum is 56.

The spelling of 80554664837 in words is "eighty billion, five hundred fifty-four million, six hundred sixty-four thousand, eight hundred thirty-seven".