9689279344920 has 512 divisors, whose sum is σ = 37453742899200. Its totient is φ = 2182219812864.

The previous prime is 9689279344907. The next prime is 9689279344967. The reversal of 9689279344920 is 294439729869.

9689279344920 is a `hidden beast` number, since 9 + 6 + 8 + 9 + 279 + 344 + 9 + 2 + 0 = 666.

9689279344920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 603196809 + ... + 603212871.

It is an arithmetic number, because the mean of its divisors is an integer number (73151841600).

Almost surely, 2^{9689279344920} is an apocalyptic number.

9689279344920 is a gapful number since it is divisible by the number (90) 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 9689279344920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18726871449600).

9689279344920 is an abundant number, since it is smaller than the sum of its proper divisors (27764463554280).

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

9689279344920 is a wasteful number, since it uses less digits than its factorization.

9689279344920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17256 (or 17246 counting only the distinct ones).

The product of its (nonzero) digits is 423263232, while the sum is 72.

The spelling of 9689279344920 in words is "nine trillion, six hundred eighty-nine billion, two hundred seventy-nine million, three hundred forty-four thousand, nine hundred twenty".