2461866361 has 4 divisors (see below), whose sum is σ = 2521911924. Its totient is φ = 2401820800.

The previous prime is 2461866353. The next prime is 2461866367. The reversal of 2461866361 is 1636681642.

It is a happy number.

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 1355638761 + 1106227600 = 36819^2 + 33260^2 .

It is a cyclic number.

It is not a de Polignac number, because 2461866361 - 2³ = 2461866353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2461866367) 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 3 ways as a sum of consecutive naturals, for example, 30022720 + ... + 30022801.

It is an arithmetic number, because the mean of its divisors is an integer number (630477981).

Almost surely, 2^2461866361 is an apocalyptic number.

It is an amenable number.

2461866361 is a deficient number, since it is larger than the sum of its proper divisors (60045563).

2461866361 is an equidigital number, since it uses as much as digits as its factorization.

2461866361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60045562.

The product of its digits is 248832, while the sum is 43.

The square root of 2461866361 is about 49617.1982381109. The cubic root of 2461866361 is about 1350.2727132640.

The spelling of 2461866361 in words is "two billion, four hundred sixty-one million, eight hundred sixty-six thousand, three hundred sixty-one".