80261682541 has 2 divisors, whose sum is σ = 80261682542. Its totient is φ = 80261682540.

The previous prime is 80261682511. The next prime is 80261682547. The reversal of 80261682541 is 14528616208.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64327669641 + 15934012900 = 253629^2 + 126230^2 .

It is a cyclic number.

It is not a de Polignac number, because 80261682541 - 2¹⁵ = 80261649773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80261682547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40130841270 + 40130841271.

It is an arithmetic number, because the mean of its divisors is an integer number (40130841271).

Almost surely, 2^80261682541 is an apocalyptic number.

It is an amenable number.

80261682541 is a deficient number, since it is larger than the sum of its proper divisors (1).

80261682541 is an equidigital number, since it uses as much as digits as its factorization.

80261682541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 184320, while the sum is 43.

The spelling of 80261682541 in words is "eighty billion, two hundred sixty-one million, six hundred eighty-two thousand, five hundred forty-one".