86240306849 has 2 divisors, whose sum is σ = 86240306850. Its totient is φ = 86240306848.

The previous prime is 86240306837. The next prime is 86240306869. The reversal of 86240306849 is 94860304268.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83965493824 + 2274813025 = 289768^2 + 47695^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86240306849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86240306797 and 86240306806.

It is not a weakly prime, because it can be changed into another prime (86240306869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43120153424 + 43120153425.

It is an arithmetic number, because the mean of its divisors is an integer number (43120153425).

Almost surely, 2^86240306849 is an apocalyptic number.

It is an amenable number.

86240306849 is a deficient number, since it is larger than the sum of its proper divisors (1).

86240306849 is an equidigital number, since it uses as much as digits as its factorization.

86240306849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1990656, while the sum is 50.

The spelling of 86240306849 in words is "eighty-six billion, two hundred forty million, three hundred six thousand, eight hundred forty-nine".