9940353885 has 192 divisors, whose sum is σ = 22631097600. Its totient is φ = 4127397120.

The previous prime is 9940353851. The next prime is 9940353893. The reversal of 9940353885 is 5883530499.

It is not a de Polignac number, because 9940353885 - 2⁷ = 9940353757 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 8804001 + ... + 8805129.

It is an arithmetic number, because the mean of its divisors is an integer number (117870300).

Almost surely, 2^9940353885 is an apocalyptic number.

It is an amenable number.

9940353885 is an abundant number, since it is smaller than the sum of its proper divisors (12690743715).

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

9940353885 is a wasteful number, since it uses less digits than its factorization.

9940353885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190 (or 1155 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 54.

The square root of 9940353885 is about 99701.3233864024. The cubic root of 9940353885 is about 2150.1426900070.

The spelling of 9940353885 in words is "nine billion, nine hundred forty million, three hundred fifty-three thousand, eight hundred eighty-five".