612345067289 has 4 divisors (see below), whose sum is σ = 620733355956. Its totient is φ = 603956778624.

The previous prime is 612345067273. The next prime is 612345067319. The reversal of 612345067289 is 982760543216.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 353144947600 + 259200119689 = 594260^2 + 509117^2 .

It is a cyclic number.

It is not a de Polignac number, because 612345067289 - 2⁴ = 612345067273 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 612345067289.

It is not an unprimeable number, because it can be changed into a prime (612345067219) 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 in 3 ways as a sum of consecutive naturals, for example, 4194144224 + ... + 4194144369.

It is an arithmetic number, because the mean of its divisors is an integer number (155183338989).

It is a 2-persistent number, because it is pandigital, and so is 2⋅612345067289 = 1224690134578, but 3⋅612345067289 = 1837035201867 is not.

Almost surely, 2^612345067289 is an apocalyptic number.

It is an amenable number.

612345067289 is a deficient number, since it is larger than the sum of its proper divisors (8388288667).

612345067289 is an equidigital number, since it uses as much as digits as its factorization.

612345067289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8388288666.

The product of its (nonzero) digits is 4354560, while the sum is 53.

The spelling of 612345067289 in words is "six hundred twelve billion, three hundred forty-five million, sixty-seven thousand, two hundred eighty-nine".