1409667216649 has 4 divisors (see below), whose sum is σ = 1415565406080. Its totient is φ = 1403769027220.

The previous prime is 1409667216637. The next prime is 1409667216689. The reversal of 1409667216649 is 9466127669041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1409667216649 - 2¹¹ = 1409667214601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1409667216689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2949094357 + ... + 2949094834.

It is an arithmetic number, because the mean of its divisors is an integer number (353891351520).

Almost surely, 2^{1409667216649} is an apocalyptic number.

It is an amenable number.

1409667216649 is a deficient number, since it is larger than the sum of its proper divisors (5898189431).

1409667216649 is an equidigital number, since it uses as much as digits as its factorization.

1409667216649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5898189430.

The product of its (nonzero) digits is 23514624, while the sum is 61.

The spelling of 1409667216649 in words is "one trillion, four hundred nine billion, six hundred sixty-seven million, two hundred sixteen thousand, six hundred forty-nine".