9868938623544 has 256 divisors, whose sum is σ = 34195106856960. Its totient is φ = 2289850560000.

The previous prime is 9868938623497. The next prime is 9868938623573. The reversal of 9868938623544 is 4453268398689.

9868938623544 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9868938623544² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5880982 + ... + 7370469.

It is an arithmetic number, because the mean of its divisors is an integer number (133574636160).

Almost surely, 2^{9868938623544} is an apocalyptic number.

It is an amenable number.

9868938623544 is an abundant number, since it is smaller than the sum of its proper divisors (24326168233416).

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

9868938623544 is a wasteful number, since it uses less digits than its factorization.

9868938623544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13251522 (or 13251518 counting only the distinct ones).

The product of its digits is 2149908480, while the sum is 75.

The spelling of 9868938623544 in words is "nine trillion, eight hundred sixty-eight billion, nine hundred thirty-eight million, six hundred twenty-three thousand, five hundred forty-four".