9995428734720 has 2304 divisors, whose sum is σ = 41793630455808. Its totient is φ = 1997663109120.

The previous prime is 9995428734661. The next prime is 9995428734769. The reversal of 9995428734720 is 274378245999.

9995428734720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 14852048304 + ... + 14852048976.

It is an arithmetic number, because the mean of its divisors is an integer number (18139596552).

Almost surely, 2^{9995428734720} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9995428734720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20896815227904).

9995428734720 is an abundant number, since it is smaller than the sum of its proper divisors (31798201721088).

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

9995428734720 is a wasteful number, since it uses less digits than its factorization.

9995428734720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818 (or 804 counting only the distinct ones).

The product of its (nonzero) digits is 274337280, while the sum is 69.

The spelling of 9995428734720 in words is "nine trillion, nine hundred ninety-five billion, four hundred twenty-eight million, seven hundred thirty-four thousand, seven hundred twenty".