86205274577 has 2 divisors, whose sum is σ = 86205274578. Its totient is φ = 86205274576.

The previous prime is 86205274541. The next prime is 86205274601. The reversal of 86205274577 is 77547250268.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71457843856 + 14747430721 = 267316^2 + 121439^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86205274577 is a prime.

It is not a weakly prime, because it can be changed into another prime (86205274537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43102637288 + 43102637289.

It is an arithmetic number, because the mean of its divisors is an integer number (43102637289).

Almost surely, 2^86205274577 is an apocalyptic number.

It is an amenable number.

86205274577 is a deficient number, since it is larger than the sum of its proper divisors (1).

86205274577 is an equidigital number, since it uses as much as digits as its factorization.

86205274577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6585600, while the sum is 53.

The spelling of 86205274577 in words is "eighty-six billion, two hundred five million, two hundred seventy-four thousand, five hundred seventy-seven".