9638750876940 has 48 divisors (see below), whose sum is σ = 29987224952160. Its totient is φ = 2570333567040.

The previous prime is 9638750876893. The next prime is 9638750876981. The reversal of 9638750876940 is 496780578369.

9638750876940 is a `hidden beast` number, since 9 + 6 + 3 + 8 + 7 + 508 + 76 + 9 + 40 = 666.

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 15 ways as a sum of consecutive naturals, for example, 8924768791 + ... + 8924769870.

It is an arithmetic number, because the mean of its divisors is an integer number (624733853170).

Almost surely, 2^{9638750876940} is an apocalyptic number.

9638750876940 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

9638750876940 is an abundant number, since it is smaller than the sum of its proper divisors (20348474075220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9638750876940 is a wasteful number, since it uses less digits than its factorization.

9638750876940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17849538679 (or 17849538671 counting only the distinct ones).

The product of its (nonzero) digits is 548674560, while the sum is 72.

The spelling of 9638750876940 in words is "nine trillion, six hundred thirty-eight billion, seven hundred fifty million, eight hundred seventy-six thousand, nine hundred forty".