612105405361 has 16 divisors (see below), whose sum is σ = 640949760000. Its totient is φ = 583976142288.

The previous prime is 612105405349. The next prime is 612105405383. The reversal of 612105405361 is 163504501216.

It is not a de Polignac number, because 612105405361 - 2¹¹ = 612105403313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (612105405061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 705000 + ... + 1311958.

It is an arithmetic number, because the mean of its divisors is an integer number (40059360000).

Almost surely, 2^612105405361 is an apocalyptic number.

It is an amenable number.

612105405361 is a deficient number, since it is larger than the sum of its proper divisors (28844354639).

612105405361 is a wasteful number, since it uses less digits than its factorization.

612105405361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607548.

The product of its (nonzero) digits is 21600, while the sum is 34.

Adding to 612105405361 its reverse (163504501216), we get a palindrome (775609906577).

The spelling of 612105405361 in words is "six hundred twelve billion, one hundred five million, four hundred five thousand, three hundred sixty-one".