24380861638 has 16 divisors (see below), whose sum is σ = 42368309280. Its totient is φ = 10305804096.

The previous prime is 24380861629. The next prime is 24380861651. The reversal of 24380861638 is 83616808342.

It is a super-2 number, since 2×24380861638² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 24380861591 and 24380861600.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 11926993 + ... + 11929036.

It is an arithmetic number, because the mean of its divisors is an integer number (2648019330).

Almost surely, 2^24380861638 is an apocalyptic number.

24380861638 is a deficient number, since it is larger than the sum of its proper divisors (17987447642).

24380861638 is a wasteful number, since it uses less digits than its factorization.

24380861638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23856111.

The product of its (nonzero) digits is 1327104, while the sum is 49.

The spelling of 24380861638 in words is "twenty-four billion, three hundred eighty million, eight hundred sixty-one thousand, six hundred thirty-eight".