873544062109 has 2 divisors, whose sum is σ = 873544062110. Its totient is φ = 873544062108.

The previous prime is 873544062107. The next prime is 873544062113. The reversal of 873544062109 is 901260445378.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 845167648900 + 28376413209 = 919330^2 + 168453^2 .

It is a cyclic number.

It is not a de Polignac number, because 873544062109 - 2¹ = 873544062107 is a prime.

Together with 873544062107, 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 (873544062107) 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, 436772031054 + 436772031055.

It is an arithmetic number, because the mean of its divisors is an integer number (436772031055).

It is a 1-persistent number, because it is pandigital, but 2⋅873544062109 = 1747088124218 is not.

Almost surely, 2^873544062109 is an apocalyptic number.

It is an amenable number.

873544062109 is a deficient number, since it is larger than the sum of its proper divisors (1).

873544062109 is an equidigital number, since it uses as much as digits as its factorization.

873544062109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 873544062109 in words is "eight hundred seventy-three billion, five hundred forty-four million, sixty-two thousand, one hundred nine".