609546861136 has 20 divisors (see below), whose sum is σ = 1243154783200. Its totient is φ = 288732723552.

The previous prime is 609546861109. The next prime is 609546861139. The reversal of 609546861136 is 631168645906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609546861139) 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, 1002543876 + ... + 1002544483.

It is an arithmetic number, because the mean of its divisors is an integer number (62157739160).

Almost surely, 2^609546861136 is an apocalyptic number.

It is an amenable number.

609546861136 is an abundant number, since it is smaller than the sum of its proper divisors (633607922064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

609546861136 is a wasteful number, since it uses less digits than its factorization.

609546861136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2005088386 (or 2005088380 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 55.

The spelling of 609546861136 in words is "six hundred nine billion, five hundred forty-six million, eight hundred sixty-one thousand, one hundred thirty-six".