213677374109 has 2 divisors, whose sum is σ = 213677374110. Its totient is φ = 213677374108.

The previous prime is 213677374103. The next prime is 213677374121. The reversal of 213677374109 is 901473776312.

213677374109 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 can be written as a sum of positive squares in only one way, i.e., 190491221209 + 23186152900 = 436453^2 + 152270^2 .

It is a cyclic number.

It is not a de Polignac number, because 213677374109 - 2¹⁶ = 213677308573 is a prime.

It is a super-2 number, since 2×213677374109² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213677374103) 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, 106838687054 + 106838687055.

It is an arithmetic number, because the mean of its divisors is an integer number (106838687055).

Almost surely, 2^213677374109 is an apocalyptic number.

It is an amenable number.

213677374109 is a deficient number, since it is larger than the sum of its proper divisors (1).

213677374109 is an equidigital number, since it uses as much as digits as its factorization.

213677374109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1333584, while the sum is 50.

The spelling of 213677374109 in words is "two hundred thirteen billion, six hundred seventy-seven million, three hundred seventy-four thousand, one hundred nine".