11881078806939 has 4 divisors (see below), whose sum is σ = 15841438409256. Its totient is φ = 7920719204624.

The previous prime is 11881078806893. The next prime is 11881078806941. The reversal of 11881078806939 is 93960887018811.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11881078806939 - 2⁷ = 11881078806811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11881078806239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1980179801154 + ... + 1980179801159.

It is an arithmetic number, because the mean of its divisors is an integer number (3960359602314).

Almost surely, 2^{11881078806939} is an apocalyptic number.

11881078806939 is a deficient number, since it is larger than the sum of its proper divisors (3960359602317).

11881078806939 is an equidigital number, since it uses as much as digits as its factorization.

11881078806939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3960359602316.

The product of its (nonzero) digits is 41803776, while the sum is 69.

The spelling of 11881078806939 in words is "eleven trillion, eight hundred eighty-one billion, seventy-eight million, eight hundred six thousand, nine hundred thirty-nine".