9081124920 has 384 divisors, whose sum is σ = 35469230400. Its totient is φ = 2060577792.

The previous prime is 9081124909. The next prime is 9081124939. The reversal of 9081124920 is 294211809.

9081124920 is a `hidden beast` number, since 90 + 81 + 1 + 2 + 492 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8307894 + ... + 8308986.

Almost surely, 2^9081124920 is an apocalyptic number.

9081124920 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 9081124920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17734615200).

9081124920 is an abundant number, since it is smaller than the sum of its proper divisors (26388105480).

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

9081124920 is a wasteful number, since it uses less digits than its factorization.

9081124920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284 (or 1267 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 9081124920 is about 95294.9364866780. The cubic root of 9081124920 is about 2086.3150133096.

The spelling of 9081124920 in words is "nine billion, eighty-one million, one hundred twenty-four thousand, nine hundred twenty".