11820676009 has 2 divisors, whose sum is σ = 11820676010. Its totient is φ = 11820676008.

The previous prime is 11820675961. The next prime is 11820676081. The reversal of 11820676009 is 90067602811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11543353600 + 277322409 = 107440^2 + 16653^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11820676009 is a prime.

It is not a weakly prime, because it can be changed into another prime (11820676409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5910338004 + 5910338005.

It is an arithmetic number, because the mean of its divisors is an integer number (5910338005).

Almost surely, 2^11820676009 is an apocalyptic number.

It is an amenable number.

11820676009 is a deficient number, since it is larger than the sum of its proper divisors (1).

11820676009 is an equidigital number, since it uses as much as digits as its factorization.

11820676009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 40.

The spelling of 11820676009 in words is "eleven billion, eight hundred twenty million, six hundred seventy-six thousand, nine".