80541820847 has 2 divisors, whose sum is σ = 80541820848. Its totient is φ = 80541820846.

The previous prime is 80541820759. The next prime is 80541820897. The reversal of 80541820847 is 74802814508.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80541820847 - 2²⁴ = 80525043631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80541820897) 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, 40270910423 + 40270910424.

It is an arithmetic number, because the mean of its divisors is an integer number (40270910424).

Almost surely, 2^80541820847 is an apocalyptic number.

80541820847 is a deficient number, since it is larger than the sum of its proper divisors (1).

80541820847 is an equidigital number, since it uses as much as digits as its factorization.

80541820847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 573440, while the sum is 47.

The spelling of 80541820847 in words is "eighty billion, five hundred forty-one million, eight hundred twenty thousand, eight hundred forty-seven".