24745430247 has 4 divisors (see below), whose sum is σ = 32993907000. Its totient is φ = 16496953496.

The previous prime is 24745430219. The next prime is 24745430249. The reversal of 24745430247 is 74203454742.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 24745430247 - 2⁶ = 24745430183 is a prime.

It is a super-2 number, since 2×24745430247² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 24745430199 and 24745430208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24745430249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4124238372 + ... + 4124238377.

It is an arithmetic number, because the mean of its divisors is an integer number (8248476750).

Almost surely, 2^24745430247 is an apocalyptic number.

24745430247 is a deficient number, since it is larger than the sum of its proper divisors (8248476753).

24745430247 is an equidigital number, since it uses as much as digits as its factorization.

24745430247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8248476752.

The product of its (nonzero) digits is 752640, while the sum is 42.

Adding to 24745430247 its reverse (74203454742), we get a palindrome (98948884989).

The spelling of 24745430247 in words is "twenty-four billion, seven hundred forty-five million, four hundred thirty thousand, two hundred forty-seven".