86240306869 has 2 divisors, whose sum is σ = 86240306870. Its totient is φ = 86240306868.

The previous prime is 86240306849. The next prime is 86240306921. The reversal of 86240306869 is 96860304268.

It is an a-pointer prime, because the next prime (86240306921) can be obtained adding 86240306869 to its sum of digits (52).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81075728644 + 5164578225 = 284738^2 + 71865^2 .

It is a cyclic number.

It is not a de Polignac number, because 86240306869 - 2⁵ = 86240306837 is a prime.

It is a super-2 number, since 2×86240306869² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86240306849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43120153434 + 43120153435.

It is an arithmetic number, because the mean of its divisors is an integer number (43120153435).

Almost surely, 2^86240306869 is an apocalyptic number.

It is an amenable number.

86240306869 is a deficient number, since it is larger than the sum of its proper divisors (1).

86240306869 is an equidigital number, since it uses as much as digits as its factorization.

86240306869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2985984, while the sum is 52.

The spelling of 86240306869 in words is "eighty-six billion, two hundred forty million, three hundred six thousand, eight hundred sixty-nine".