8758921721338 has 16 divisors (see below), whose sum is σ = 13153403913120. Its totient is φ = 4374454983696.

The previous prime is 8758921721317. The next prime is 8758921721359. The reversal of 8758921721338 is 8331271298578.

It is an interprime number because it is at equal distance from previous prime (8758921721317) and next prime (8758921721359).

It is a self number, because there is not a number n which added to its sum of digits gives 8758921721338.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14090445 + ... + 14698927.

It is an arithmetic number, because the mean of its divisors is an integer number (822087744570).

Almost surely, 2^{8758921721338} is an apocalyptic number.

8758921721338 is a deficient number, since it is larger than the sum of its proper divisors (4394482191782).

8758921721338 is a wasteful number, since it uses less digits than its factorization.

8758921721338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616701.

The product of its digits is 40642560, while the sum is 64.

The spelling of 8758921721338 in words is "eight trillion, seven hundred fifty-eight billion, nine hundred twenty-one million, seven hundred twenty-one thousand, three hundred thirty-eight".