23539518650 has 24 divisors (see below), whose sum is σ = 44234890140. Its totient is φ = 9318735360.

The previous prime is 23539518647. The next prime is 23539518661. The reversal of 23539518650 is 5681593532.

It can be written as a sum of positive squares in 6 ways, for example, as 5070436849 + 18469081801 = 71207^2 + 135901^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23539518595 and 23539518604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2421905 + ... + 2431604.

Almost surely, 2^23539518650 is an apocalyptic number.

23539518650 is a deficient number, since it is larger than the sum of its proper divisors (20695371490).

23539518650 is a wasteful number, since it uses less digits than its factorization.

23539518650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4853618 (or 4853613 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 47.

The spelling of 23539518650 in words is "twenty-three billion, five hundred thirty-nine million, five hundred eighteen thousand, six hundred fifty".