2441978561 has 12 divisors (see below), whose sum is σ = 2694099072. Its totient is φ = 2211759000.

The previous prime is 2441978543. The next prime is 2441978587. The reversal of 2441978561 is 1658791442.

It is a happy number.

It is not a de Polignac number, because 2441978561 - 2¹⁴ = 2441962177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2441978521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4445 + ... + 70026.

It is an arithmetic number, because the mean of its divisors is an integer number (224508256).

Almost surely, 2^2441978561 is an apocalyptic number.

It is an amenable number.

2441978561 is a deficient number, since it is larger than the sum of its proper divisors (252120511).

2441978561 is a wasteful number, since it uses less digits than its factorization.

2441978561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74764 (or 74753 counting only the distinct ones).

The product of its digits is 483840, while the sum is 47.

The square root of 2441978561 is about 49416.3794808968. The cubic root of 2441978561 is about 1346.6268896188.

The spelling of 2441978561 in words is "two billion, four hundred forty-one million, nine hundred seventy-eight thousand, five hundred sixty-one".