86606240115389 has 2 divisors, whose sum is σ = 86606240115390. Its totient is φ = 86606240115388.

The previous prime is 86606240115281. The next prime is 86606240115397. The reversal of 86606240115389 is 98351104260668.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75462961311364 + 11143278804025 = 8686942^2 + 3338155^2 .

It is a cyclic number.

It is not a de Polignac number, because 86606240115389 - 2¹⁶ = 86606240049853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86606240115589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43303120057694 + 43303120057695.

It is an arithmetic number, because the mean of its divisors is an integer number (43303120057695).

Almost surely, 2^{86606240115389} is an apocalyptic number.

It is an amenable number.

86606240115389 is a deficient number, since it is larger than the sum of its proper divisors (1).

86606240115389 is an equidigital number, since it uses as much as digits as its factorization.

86606240115389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14929920, while the sum is 59.

The spelling of 86606240115389 in words is "eighty-six trillion, six hundred six billion, two hundred forty million, one hundred fifteen thousand, three hundred eighty-nine".