24742245243 has 4 divisors (see below), whose sum is σ = 32989660328. Its totient is φ = 16494830160.

The previous prime is 24742245211. The next prime is 24742245263. The reversal of 24742245243 is 34254224742.

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

It is not a de Polignac number, because 24742245243 - 2⁵ = 24742245211 is a prime.

It is a super-2 number, since 2×24742245243² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (24742245263) 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, 4123707538 + ... + 4123707543.

It is an arithmetic number, because the mean of its divisors is an integer number (8247415082).

Almost surely, 2^24742245243 is an apocalyptic number.

24742245243 is a deficient number, since it is larger than the sum of its proper divisors (8247415085).

24742245243 is an equidigital number, since it uses as much as digits as its factorization.

24742245243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8247415084.

The product of its digits is 430080, while the sum is 39.

Adding to 24742245243 its reverse (34254224742), we get a palindrome (58996469985).

The spelling of 24742245243 in words is "twenty-four billion, seven hundred forty-two million, two hundred forty-five thousand, two hundred forty-three".