86679169541 has 2 divisors, whose sum is σ = 86679169542. Its totient is φ = 86679169540.

The previous prime is 86679169529. The next prime is 86679169559. The reversal of 86679169541 is 14596197668.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83969550625 + 2709618916 = 289775^2 + 52054^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86679169541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86679169501) 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, 43339584770 + 43339584771.

It is an arithmetic number, because the mean of its divisors is an integer number (43339584771).

Almost surely, 2^86679169541 is an apocalyptic number.

It is an amenable number.

86679169541 is a deficient number, since it is larger than the sum of its proper divisors (1).

86679169541 is an equidigital number, since it uses as much as digits as its factorization.

86679169541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19595520, while the sum is 62.

The spelling of 86679169541 in words is "eighty-six billion, six hundred seventy-nine million, one hundred sixty-nine thousand, five hundred forty-one".