86679169529 has 2 divisors, whose sum is σ = 86679169530. Its totient is φ = 86679169528.

The previous prime is 86679169519. The next prime is 86679169541. The reversal of 86679169529 is 92596197668.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47852437504 + 38826732025 = 218752^2 + 197045^2 .

It is a cyclic number.

It is not a de Polignac number, because 86679169529 - 2⁸ = 86679169273 is a prime.

It is not a weakly prime, because it can be changed into another prime (86679169519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43339584764 + 43339584765.

It is an arithmetic number, because the mean of its divisors is an integer number (43339584765).

Almost surely, 2^86679169529 is an apocalyptic number.

It is an amenable number.

86679169529 is a deficient number, since it is larger than the sum of its proper divisors (1).

86679169529 is an equidigital number, since it uses as much as digits as its factorization.

86679169529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 88179840, while the sum is 68.

The spelling of 86679169529 in words is "eighty-six billion, six hundred seventy-nine million, one hundred sixty-nine thousand, five hundred twenty-nine".