9876242643940 has 48 divisors (see below), whose sum is σ = 20937079013760. Its totient is φ = 3913023941120.

The previous prime is 9876242643913. The next prime is 9876242644061. The reversal of 9876242643940 is 493462426789.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2121795 + ... + 4924885.

It is an arithmetic number, because the mean of its divisors is an integer number (436189146120).

Almost surely, 2^{9876242643940} is an apocalyptic number.

It is an amenable number.

9876242643940 is an abundant number, since it is smaller than the sum of its proper divisors (11060836369820).

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

9876242643940 is a wasteful number, since it uses less digits than its factorization.

9876242643940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2804772 (or 2804770 counting only the distinct ones).

The product of its (nonzero) digits is 125411328, while the sum is 64.

The spelling of 9876242643940 in words is "nine trillion, eight hundred seventy-six billion, two hundred forty-two million, six hundred forty-three thousand, nine hundred forty".