8111079789887 has 2 divisors, whose sum is σ = 8111079789888. Its totient is φ = 8111079789886.

The previous prime is 8111079789781. The next prime is 8111079789889. The reversal of 8111079789887 is 7889879701118.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8111079789887 - 2²⁸ = 8110811354431 is a prime.

Together with 8111079789889, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8111079789889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4055539894943 + 4055539894944.

It is an arithmetic number, because the mean of its divisors is an integer number (4055539894944).

Almost surely, 2^{8111079789887} is an apocalyptic number.

8111079789887 is a deficient number, since it is larger than the sum of its proper divisors (1).

8111079789887 is an equidigital number, since it uses as much as digits as its factorization.

8111079789887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 113799168, while the sum is 74.

The spelling of 8111079789887 in words is "eight trillion, one hundred eleven billion, seventy-nine million, seven hundred eighty-nine thousand, eight hundred eighty-seven".