9765655470720 has 512 divisors, whose sum is σ = 36425872800000. Its totient is φ = 2465837531136.

The previous prime is 9765655470713. The next prime is 9765655470733. The reversal of 9765655470720 is 270745565679.

9765655470720 is a `hidden beast` number, since 9 + 7 + 6 + 5 + 6 + 554 + 7 + 0 + 72 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 744951526 + ... + 744964634.

Almost surely, 2^{9765655470720} is an apocalyptic number.

9765655470720 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 9765655470720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18212936400000).

9765655470720 is an abundant number, since it is smaller than the sum of its proper divisors (26660217329280).

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

9765655470720 is a wasteful number, since it uses less digits than its factorization.

9765655470720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15425 (or 15407 counting only the distinct ones).

The product of its (nonzero) digits is 111132000, while the sum is 63.

The spelling of 9765655470720 in words is "nine trillion, seven hundred sixty-five billion, six hundred fifty-five million, four hundred seventy thousand, seven hundred twenty".