9421612198752 has 480 divisors, whose sum is σ = 27647507284992. Its totient is φ = 2807822524416.

The previous prime is 9421612198727. The next prime is 9421612198783. The reversal of 9421612198752 is 2578912161249.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 9421612198692 and 9421612198701.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 14561996893 + ... + 14561997539.

Almost surely, 2^{9421612198752} 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 9421612198752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13823753642496).

9421612198752 is an abundant number, since it is smaller than the sum of its proper divisors (18225895086240).

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

9421612198752 is a wasteful number, since it uses less digits than its factorization.

9421612198752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872 (or 825 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 57.

The spelling of 9421612198752 in words is "nine trillion, four hundred twenty-one billion, six hundred twelve million, one hundred ninety-eight thousand, seven hundred fifty-two".