24561561413 has 4 divisors (see below), whose sum is σ = 24671703168. Its totient is φ = 24451419660.

The previous prime is 24561561389. The next prime is 24561561419. The reversal of 24561561413 is 31416516542.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 24561561413 - 2¹⁰ = 24561560389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24561561419) 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, 55070543 + ... + 55070988.

It is an arithmetic number, because the mean of its divisors is an integer number (6167925792).

Almost surely, 2^24561561413 is an apocalyptic number.

It is an amenable number.

24561561413 is a deficient number, since it is larger than the sum of its proper divisors (110141755).

24561561413 is a wasteful number, since it uses less digits than its factorization.

24561561413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110141754.

The product of its digits is 86400, while the sum is 38.

The spelling of 24561561413 in words is "twenty-four billion, five hundred sixty-one million, five hundred sixty-one thousand, four hundred thirteen".