9213172500000 has 768 divisors, whose sum is σ = 34877498213376. Its totient is φ = 2085888000000.

The previous prime is 9213172499987. The next prime is 9213172500019. The reversal of 9213172500000 is 52713129.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 5932499224 + ... + 5932500776.

It is an arithmetic number, because the mean of its divisors is an integer number (45413409132).

Almost surely, 2^{9213172500000} 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 9213172500000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17438749106688).

9213172500000 is an abundant number, since it is smaller than the sum of its proper divisors (25664325713376).

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

9213172500000 is an equidigital number, since it uses as much as digits as its factorization.

9213172500000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1721 (or 1683 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 30.

The spelling of 9213172500000 in words is "nine trillion, two hundred thirteen billion, one hundred seventy-two million, five hundred thousand".