24252643949 has 4 divisors (see below), whose sum is σ = 24388133760. Its totient is φ = 24117154140.

The previous prime is 24252643939. The next prime is 24252643957. The reversal of 24252643949 is 94934625242.

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 24252643949 - 2⁸ = 24252643693 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 24252643897 and 24252643906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24252643939) 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, 67744637 + ... + 67744994.

It is an arithmetic number, because the mean of its divisors is an integer number (6097033440).

Almost surely, 2^24252643949 is an apocalyptic number.

It is an amenable number.

24252643949 is a deficient number, since it is larger than the sum of its proper divisors (135489811).

24252643949 is a wasteful number, since it uses less digits than its factorization.

24252643949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135489810.

The product of its digits is 3732480, while the sum is 50.

The spelling of 24252643949 in words is "twenty-four billion, two hundred fifty-two million, six hundred forty-three thousand, nine hundred forty-nine".