9940460840640 has 224 divisors, whose sum is σ = 38255713297920. Its totient is φ = 2409808665600.

The previous prime is 9940460840621. The next prime is 9940460840641. The reversal of 9940460840640 is 460480640499.

It is a happy number.

9940460840640 is a `hidden beast` number, since 9 + 9 + 40 + 460 + 84 + 0 + 64 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (9940460840641) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 52201156 + ... + 52391235.

Almost surely, 2^{9940460840640} is an apocalyptic number.

9940460840640 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

9940460840640 is an abundant number, since it is smaller than the sum of its proper divisors (28315252457280).

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

9940460840640 is a wasteful number, since it uses less digits than its factorization.

9940460840640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104592428 (or 104592412 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 54.

The spelling of 9940460840640 in words is "nine trillion, nine hundred forty billion, four hundred sixty million, eight hundred forty thousand, six hundred forty".