11808876881 has 2 divisors, whose sum is σ = 11808876882. Its totient is φ = 11808876880.

The previous prime is 11808876857. The next prime is 11808876883. The reversal of 11808876881 is 18867880811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10483916881 + 1324960000 = 102391^2 + 36400^2 .

It is a cyclic number.

It is not a de Polignac number, because 11808876881 - 2⁶ = 11808876817 is a prime.

It is a super-2 number, since 2×11808876881² (a number of 21 digits) contains 22 as substring.

Together with 11808876883, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11808876883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5904438440 + 5904438441.

It is an arithmetic number, because the mean of its divisors is an integer number (5904438441).

Almost surely, 2^11808876881 is an apocalyptic number.

It is an amenable number.

11808876881 is a deficient number, since it is larger than the sum of its proper divisors (1).

11808876881 is an equidigital number, since it uses as much as digits as its factorization.

11808876881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1376256, while the sum is 56.

The spelling of 11808876881 in words is "eleven billion, eight hundred eight million, eight hundred seventy-six thousand, eight hundred eighty-one".