11686481449 has 8 divisors (see below), whose sum is σ = 12322527840. Its totient is φ = 11052531936.

The previous prime is 11686481431. The next prime is 11686481459. The reversal of 11686481449 is 94418468611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11686481449 - 2¹⁹ = 11685957161 is a prime.

It is a super-2 number, since 2×11686481449² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11686481396 and 11686481405.

It is not an unprimeable number, because it can be changed into a prime (11686481459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 512764 + ... + 535069.

It is an arithmetic number, because the mean of its divisors is an integer number (1540315980).

Almost surely, 2^11686481449 is an apocalyptic number.

11686481449 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11686481449 is a deficient number, since it is larger than the sum of its proper divisors (636046391).

11686481449 is a wasteful number, since it uses less digits than its factorization.

11686481449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048439.

The product of its digits is 1327104, while the sum is 52.

The spelling of 11686481449 in words is "eleven billion, six hundred eighty-six million, four hundred eighty-one thousand, four hundred forty-nine".