24652765138 has 4 divisors (see below), whose sum is σ = 36979147710. Its totient is φ = 12326382568.

The previous prime is 24652765133. The next prime is 24652765153. The reversal of 24652765138 is 83156725642.

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

It can be written as a sum of positive squares in only one way, i.e., 12677183649 + 11975581489 = 112593^2 + 109433^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 24652765091 and 24652765100.

It is not an unprimeable number, because it can be changed into a prime (24652765133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6163191283 + ... + 6163191286.

Almost surely, 2^24652765138 is an apocalyptic number.

24652765138 is a deficient number, since it is larger than the sum of its proper divisors (12326382572).

24652765138 is a wasteful number, since it uses less digits than its factorization.

24652765138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12326382571.

The product of its digits is 2419200, while the sum is 49.

The spelling of 24652765138 in words is "twenty-four billion, six hundred fifty-two million, seven hundred sixty-five thousand, one hundred thirty-eight".