9938892799056 has 160 divisors (see below), whose sum is σ = 29283345745920. Its totient is φ = 2881499715072.

The previous prime is 9938892799039. The next prime is 9938892799067. The reversal of 9938892799056 is 6509972988399.

It is a happy number.

It is a super-2 number, since 2×9938892799056² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9938892799056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4206396 + ... + 6129563.

It is an arithmetic number, because the mean of its divisors is an integer number (183020910912).

Almost surely, 2^{9938892799056} is an apocalyptic number.

It is an amenable number.

9938892799056 is an abundant number, since it is smaller than the sum of its proper divisors (19344452946864).

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

9938892799056 is a wasteful number, since it uses less digits than its factorization.

9938892799056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10336073 (or 10336067 counting only the distinct ones).

The product of its (nonzero) digits is 4761711360, while the sum is 84.

The spelling of 9938892799056 in words is "nine trillion, nine hundred thirty-eight billion, eight hundred ninety-two million, seven hundred ninety-nine thousand, fifty-six".