609041441861 has 4 divisors (see below), whose sum is σ = 610134874092. Its totient is φ = 607948009632.

The previous prime is 609041441857. The next prime is 609041441917. The reversal of 609041441861 is 168144140906.

609041441861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 393461380225 + 215580061636 = 627265^2 + 464306^2 .

It is a cyclic number.

It is not a de Polignac number, because 609041441861 - 2² = 609041441857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609041441161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 546715280 + ... + 546716393.

It is an arithmetic number, because the mean of its divisors is an integer number (152533718523).

Almost surely, 2^609041441861 is an apocalyptic number.

It is an amenable number.

609041441861 is a deficient number, since it is larger than the sum of its proper divisors (1093432231).

609041441861 is a wasteful number, since it uses less digits than its factorization.

609041441861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093432230.

The product of its (nonzero) digits is 165888, while the sum is 44.

The spelling of 609041441861 in words is "six hundred nine billion, forty-one million, four hundred forty-one thousand, eight hundred sixty-one".