80879566597847 has 2 divisors, whose sum is σ = 80879566597848. Its totient is φ = 80879566597846.

The previous prime is 80879566597783. The next prime is 80879566597871. The reversal of 80879566597847 is 74879566597808.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80879566597847 - 2⁶ = 80879566597783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80879566597747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40439783298923 + 40439783298924.

It is an arithmetic number, because the mean of its divisors is an integer number (40439783298924).

Almost surely, 2^{80879566597847} is an apocalyptic number.

80879566597847 is a deficient number, since it is larger than the sum of its proper divisors (1).

80879566597847 is an equidigital number, since it uses as much as digits as its factorization.

80879566597847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51209625600, while the sum is 89.

The spelling of 80879566597847 in words is "eighty trillion, eight hundred seventy-nine billion, five hundred sixty-six million, five hundred ninety-seven thousand, eight hundred forty-seven".