3446121156809 has 2 divisors, whose sum is σ = 3446121156810. Its totient is φ = 3446121156808.

The previous prime is 3446121156787. The next prime is 3446121156839. The reversal of 3446121156809 is 9086511216443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3395370078409 + 50751078400 = 1842653^2 + 225280^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3446121156809 is a prime.

It is not a weakly prime, because it can be changed into another prime (3446121156839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1723060578404 + 1723060578405.

It is an arithmetic number, because the mean of its divisors is an integer number (1723060578405).

Almost surely, 2^{3446121156809} is an apocalyptic number.

It is an amenable number.

3446121156809 is a deficient number, since it is larger than the sum of its proper divisors (1).

3446121156809 is an equidigital number, since it uses as much as digits as its factorization.

3446121156809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 3446121156809 in words is "three trillion, four hundred forty-six billion, one hundred twenty-one million, one hundred fifty-six thousand, eight hundred nine".