9738466799985 has 320 divisors, whose sum is σ = 22487230402560. Its totient is φ = 3914115540480.

The previous prime is 9738466799891. The next prime is 9738466799989. The reversal of 9738466799985 is 5899976648379.

9738466799985 is a `hidden beast` number, since 9 + 7 + 384 + 6 + 67 + 9 + 99 + 85 = 666.

It is not a de Polignac number, because 9738466799985 - 2¹⁸ = 9738466537841 is a prime.

It is a super-2 number, since 2×9738466799985² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9738466799895 and 9738466799904.

It is not an unprimeable number, because it can be changed into a prime (9738466799989) by changing a digit.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 192666846 + ... + 192717384.

It is an arithmetic number, because the mean of its divisors is an integer number (70272595008).

Almost surely, 2^{9738466799985} is an apocalyptic number.

It is an amenable number.

9738466799985 is an abundant number, since it is smaller than the sum of its proper divisors (12748763602575).

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

9738466799985 is a wasteful number, since it uses less digits than its factorization.

9738466799985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50778 (or 50769 counting only the distinct ones).

The product of its digits is 44442639360, while the sum is 90.

The spelling of 9738466799985 in words is "nine trillion, seven hundred thirty-eight billion, four hundred sixty-six million, seven hundred ninety-nine thousand, nine hundred eighty-five".