2421646845 has 16 divisors (see below), whose sum is σ = 3875256000. Its totient is φ = 1291337984.

The previous prime is 2421646841. The next prime is 2421646853. The reversal of 2421646845 is 5486461242.

It is a cyclic number.

It is not a de Polignac number, because 2421646845 - 2² = 2421646841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2421646797 and 2421646806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421646841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149797 + ... + 165173.

It is an arithmetic number, because the mean of its divisors is an integer number (242203500).

Almost surely, 2^2421646845 is an apocalyptic number.

It is an amenable number.

2421646845 is a deficient number, since it is larger than the sum of its proper divisors (1453609155).

2421646845 is a wasteful number, since it uses less digits than its factorization.

2421646845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25884.

The product of its digits is 368640, while the sum is 42.

The square root of 2421646845 is about 49210.2311008595. The cubic root of 2421646845 is about 1342.8791670249.

The spelling of 2421646845 in words is "two billion, four hundred twenty-one million, six hundred forty-six thousand, eight hundred forty-five".