854189971111 has 2 divisors, whose sum is σ = 854189971112. Its totient is φ = 854189971110.

The previous prime is 854189971099. The next prime is 854189971153. The reversal of 854189971111 is 111179981458.

854189971111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 854189971111 - 2¹¹ = 854189969063 is a prime.

It is a super-2 number, since 2×854189971111² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (854189971171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427094985555 + 427094985556.

It is an arithmetic number, because the mean of its divisors is an integer number (427094985556).

Almost surely, 2^854189971111 is an apocalyptic number.

854189971111 is a deficient number, since it is larger than the sum of its proper divisors (1).

854189971111 is an equidigital number, since it uses as much as digits as its factorization.

854189971111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 55.

The spelling of 854189971111 in words is "eight hundred fifty-four billion, one hundred eighty-nine million, nine hundred seventy-one thousand, one hundred eleven".