9985026728736 has 48 divisors (see below), whose sum is σ = 29122994628000. Its totient is φ = 3328342242624.

The previous prime is 9985026728717. The next prime is 9985026728737. The reversal of 9985026728736 is 6378276205899.

9985026728736 is a `hidden beast` number, since 9 + 9 + 8 + 50 + 267 + 287 + 36 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (9985026728737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5778371086 + ... + 5778372813.

It is an arithmetic number, because the mean of its divisors is an integer number (606729054750).

Almost surely, 2^{9985026728736} is an apocalyptic number.

9985026728736 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

9985026728736 is an abundant number, since it is smaller than the sum of its proper divisors (19137967899264).

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

9985026728736 is a wasteful number, since it uses less digits than its factorization.

9985026728736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11556743918 (or 11556743904 counting only the distinct ones).

The product of its (nonzero) digits is 548674560, while the sum is 72.

The spelling of 9985026728736 in words is "nine trillion, nine hundred eighty-five billion, twenty-six million, seven hundred twenty-eight thousand, seven hundred thirty-six".