11671412449 has 2 divisors, whose sum is σ = 11671412450. Its totient is φ = 11671412448.

The previous prime is 11671412443. The next prime is 11671412483. The reversal of 11671412449 is 94421417611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6578021025 + 5093391424 = 81105^2 + 71368^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11671412449 is a prime.

It is not a weakly prime, because it can be changed into another prime (11671412443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5835706224 + 5835706225.

It is an arithmetic number, because the mean of its divisors is an integer number (5835706225).

Almost surely, 2^11671412449 is an apocalyptic number.

It is an amenable number.

11671412449 is a deficient number, since it is larger than the sum of its proper divisors (1).

11671412449 is an equidigital number, since it uses as much as digits as its factorization.

11671412449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 40.

The spelling of 11671412449 in words is "eleven billion, six hundred seventy-one million, four hundred twelve thousand, four hundred forty-nine".