9164897280 has 1320 divisors, whose sum is σ = 42693312816. Its totient is φ = 1857945600.

The previous prime is 9164897279. The next prime is 9164897297. The reversal of 9164897280 is 827984619.

9164897280 is a `hidden beast` number, since 9 + 16 + 489 + 72 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (1320).

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 polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 223534060 + ... + 223534100.

Almost surely, 2^9164897280 is an apocalyptic number.

9164897280 is a gapful number since it is divisible by the number (90) 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 9164897280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21346656408).

9164897280 is an abundant number, since it is smaller than the sum of its proper divisors (33528415536).

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

9164897280 is a wasteful number, since it uses less digits than its factorization.

9164897280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The square root of 9164897280 is about 95733.4700091875. The cubic root of 9164897280 is about 2092.7107276119.

The spelling of 9164897280 in words is "nine billion, one hundred sixty-four million, eight hundred ninety-seven thousand, two hundred eighty".