9921367296 has 216 divisors, whose sum is σ = 30363292960. Its totient is φ = 3229341696.

The previous prime is 9921367279. The next prime is 9921367349. The reversal of 9921367296 is 6927631299.

It is a tau number, because it is divible by the number of its divisors (216).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 2673090 + ... + 2676798.

Almost surely, 2^9921367296 is an apocalyptic number.

9921367296 is a gapful number since it is divisible by the number (96) 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 9921367296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15181646480).

9921367296 is an abundant number, since it is smaller than the sum of its proper divisors (20441925664).

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

9921367296 is an equidigital number, since it uses as much as digits as its factorization.

9921367296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3783 (or 3757 counting only the distinct ones).

The product of its digits is 2204496, while the sum is 54.

The square root of 9921367296 is about 99606.0605385034. The cubic root of 9921367296 is about 2148.7728563123.

The spelling of 9921367296 in words is "nine billion, nine hundred twenty-one million, three hundred sixty-seven thousand, two hundred ninety-six".