9421766144 has 80 divisors (see below), whose sum is σ = 21587035008. Its totient is φ = 4024276992.

The previous prime is 9421766141. The next prime is 9421766147. The reversal of 9421766144 is 4416671249.

It is an interprime number because it is at equal distance from previous prime (9421766141) and next prime (9421766147).

It is a junction number, because it is equal to n+sod(n) for n = 9421766095 and 9421766104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9421766141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1096007 + ... + 1104569.

Almost surely, 2^9421766144 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 9421766144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10793517504).

9421766144 is an abundant number, since it is smaller than the sum of its proper divisors (12165268864).

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

9421766144 is an equidigital number, since it uses as much as digits as its factorization.

9421766144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8895 (or 8879 counting only the distinct ones).

The product of its digits is 290304, while the sum is 44.

The square root of 9421766144 is about 97065.7825600762. The cubic root of 9421766144 is about 2112.0819910012.

The spelling of 9421766144 in words is "nine billion, four hundred twenty-one million, seven hundred sixty-six thousand, one hundred forty-four".