213933768871 has 2 divisors, whose sum is σ = 213933768872. Its totient is φ = 213933768870.

The previous prime is 213933768869. The next prime is 213933768883. The reversal of 213933768871 is 178867339312.

It is a happy number.

213933768871 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 213933768871 - 2¹ = 213933768869 is a prime.

It is a super-2 number, since 2×213933768871² (a number of 23 digits) contains 22 as substring.

Together with 213933768869, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213933768271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106966884435 + 106966884436.

It is an arithmetic number, because the mean of its divisors is an integer number (106966884436).

Almost surely, 2^213933768871 is an apocalyptic number.

213933768871 is a deficient number, since it is larger than the sum of its proper divisors (1).

213933768871 is an equidigital number, since it uses as much as digits as its factorization.

213933768871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9144576, while the sum is 58.

The spelling of 213933768871 in words is "two hundred thirteen billion, nine hundred thirty-three million, seven hundred sixty-eight thousand, eight hundred seventy-one".