86612400723449 has 2 divisors, whose sum is σ = 86612400723450. Its totient is φ = 86612400723448.

The previous prime is 86612400723383. The next prime is 86612400723533. The reversal of 86612400723449 is 94432700421668.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69326139317824 + 17286261405625 = 8326232^2 + 4157675^2 .

It is a cyclic number.

It is not a de Polignac number, because 86612400723449 - 2⁴⁴ = 69020214679033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86612400723394 and 86612400723403.

It is not a weakly prime, because it can be changed into another prime (86612400023449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43306200361724 + 43306200361725.

It is an arithmetic number, because the mean of its divisors is an integer number (43306200361725).

Almost surely, 2^{86612400723449} is an apocalyptic number.

It is an amenable number.

86612400723449 is a deficient number, since it is larger than the sum of its proper divisors (1).

86612400723449 is an equidigital number, since it uses as much as digits as its factorization.

86612400723449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13934592, while the sum is 56.

The spelling of 86612400723449 in words is "eighty-six trillion, six hundred twelve billion, four hundred million, seven hundred twenty-three thousand, four hundred forty-nine".