9001690880 has 288 divisors, whose sum is σ = 26818915200. Its totient is φ = 2818768896.

The previous prime is 9001690879. The next prime is 9001690931. The reversal of 9001690880 is 880961009.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12695966 + ... + 12696674.

Almost surely, 2^9001690880 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 9001690880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13409457600).

9001690880 is an abundant number, since it is smaller than the sum of its proper divisors (17817224320).

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

9001690880 is a wasteful number, since it uses less digits than its factorization.

9001690880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859 (or 845 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 9001690880 is about 94877.2411066005. The cubic root of 9001690880 is about 2080.2140805295.

The spelling of 9001690880 in words is "nine billion, one million, six hundred ninety thousand, eight hundred eighty".