1406461646209 has 2 divisors, whose sum is σ = 1406461646210. Its totient is φ = 1406461646208.

The previous prime is 1406461646197. The next prime is 1406461646267. The reversal of 1406461646209 is 9026461646041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1150352777025 + 256108869184 = 1072545^2 + 506072^2 .

It is a cyclic number.

It is not a de Polignac number, because 1406461646209 - 2⁷ = 1406461646081 is a prime.

It is not a weakly prime, because it can be changed into another prime (1406461641209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 703230823104 + 703230823105.

It is an arithmetic number, because the mean of its divisors is an integer number (703230823105).

Almost surely, 2^{1406461646209} is an apocalyptic number.

It is an amenable number.

1406461646209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1406461646209 is an equidigital number, since it uses as much as digits as its factorization.

1406461646209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1492992, while the sum is 49.

The spelling of 1406461646209 in words is "one trillion, four hundred six billion, four hundred sixty-one million, six hundred forty-six thousand, two hundred nine".