840465000073 has 2 divisors, whose sum is σ = 840465000074. Its totient is φ = 840465000072.

The previous prime is 840465000061. The next prime is 840465000077. The reversal of 840465000073 is 370000564048.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 807505323769 + 32959676304 = 898613^2 + 181548^2 .

It is a cyclic number.

It is not a de Polignac number, because 840465000073 - 2⁵ = 840465000041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 840464999996 and 840465000041.

It is not a weakly prime, because it can be changed into another prime (840465000077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420232500036 + 420232500037.

It is an arithmetic number, because the mean of its divisors is an integer number (420232500037).

Almost surely, 2^840465000073 is an apocalyptic number.

It is an amenable number.

840465000073 is a deficient number, since it is larger than the sum of its proper divisors (1).

840465000073 is an equidigital number, since it uses as much as digits as its factorization.

840465000073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 37.

The spelling of 840465000073 in words is "eight hundred forty billion, four hundred sixty-five million, seventy-three", and thus it is an aban number.