9047181312 has 288 divisors, whose sum is σ = 29808618840. Its totient is φ = 2618818560.

The previous prime is 9047181251. The next prime is 9047181313. The reversal of 9047181312 is 2131817409.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7988069376 + 1059111936 = 89376^2 + 32544^2 .

It is a tau number, because it is divible by the number of its divisors (288).

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

It is not an unprimeable number, because it can be changed into a prime (9047181313) 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, 4072362 + ... + 4074582.

Almost surely, 2^9047181312 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 9047181312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14904309420).

9047181312 is an abundant number, since it is smaller than the sum of its proper divisors (20761437528).

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

9047181312 is a wasteful number, since it uses less digits than its factorization.

9047181312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2279 (or 2256 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 9047181312 is about 95116.6721032648. The cubic root of 9047181312 is about 2083.7123446945.

The spelling of 9047181312 in words is "nine billion, forty-seven million, one hundred eighty-one thousand, three hundred twelve".