9169972992 has 216 divisors, whose sum is σ = 28278772704. Its totient is φ = 2847670272.

The previous prime is 9169972991. The next prime is 9169973051. The reversal of 9169972992 is 2992799619.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9169972991) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4033168 + ... + 4035440.

It is an arithmetic number, because the mean of its divisors is an integer number (130920244).

Almost surely, 2^9169972992 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 9169972992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14139386352).

9169972992 is an abundant number, since it is smaller than the sum of its proper divisors (19108799712).

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

9169972992 is a wasteful number, since it uses less digits than its factorization.

9169972992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2415 (or 2398 counting only the distinct ones).

The product of its digits is 9920232, while the sum is 63.

The square root of 9169972992 is about 95759.9759398466. The cubic root of 9169972992 is about 2093.0969853202.

The spelling of 9169972992 in words is "nine billion, one hundred sixty-nine million, nine hundred seventy-two thousand, nine hundred ninety-two".