9621273707136 has 384 divisors, whose sum is σ = 34279450732800. Its totient is φ = 2522279706624.

The previous prime is 9621273707117. The next prime is 9621273707137. The reversal of 9621273707136 is 6317073721269.

9621273707136 is a `hidden beast` number, since 9 + 621 + 2 + 7 + 3 + 7 + 0 + 7 + 1 + 3 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is not an unprimeable number, because it can be changed into a prime (9621273707137) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17232160 + ... + 17781728.

It is an arithmetic number, because the mean of its divisors is an integer number (89269402950).

Almost surely, 2^{9621273707136} is an apocalyptic number.

9621273707136 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9621273707136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17139725366400).

9621273707136 is an abundant number, since it is smaller than the sum of its proper divisors (24658177025664).

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

9621273707136 is a wasteful number, since it uses less digits than its factorization.

9621273707136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549776 (or 549761 counting only the distinct ones).

The product of its (nonzero) digits is 4000752, while the sum is 54.

The spelling of 9621273707136 in words is "nine trillion, six hundred twenty-one billion, two hundred seventy-three million, seven hundred seven thousand, one hundred thirty-six".