539874321989 has 2 divisors, whose sum is σ = 539874321990. Its totient is φ = 539874321988.

The previous prime is 539874321929. The next prime is 539874321991. The reversal of 539874321989 is 989123478935.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 366227097889 + 173647224100 = 605167^2 + 416710^2 .

It is a cyclic number.

It is not a de Polignac number, because 539874321989 - 2¹² = 539874317893 is a prime.

It is a super-3 number, since 3×539874321989³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 539874321991, 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 (539874321929) 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, 269937160994 + 269937160995.

It is an arithmetic number, because the mean of its divisors is an integer number (269937160995).

Almost surely, 2^539874321989 is an apocalyptic number.

It is an amenable number.

539874321989 is a deficient number, since it is larger than the sum of its proper divisors (1).

539874321989 is an equidigital number, since it uses as much as digits as its factorization.

539874321989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 117573120, while the sum is 68.

The spelling of 539874321989 in words is "five hundred thirty-nine billion, eight hundred seventy-four million, three hundred twenty-one thousand, nine hundred eighty-nine".