9281793640 has 48 divisors (see below), whose sum is σ = 24293679300. Its totient is φ = 3182328576.

The previous prime is 9281793617. The next prime is 9281793641. The reversal of 9281793640 is 463971829.

9281793640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 7811377924 + 1470415716 = 88382^2 + 38346^2 .

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (9281793641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2365845 + ... + 2369764.

Almost surely, 2^9281793640 is an apocalyptic number.

It is an amenable number.

9281793640 is an abundant number, since it is smaller than the sum of its proper divisors (15011885660).

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

9281793640 is a wasteful number, since it uses less digits than its factorization.

9281793640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4735634 (or 4735623 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 9281793640 is about 96342.0657864466. The cubic root of 9281793640 is about 2101.5705288581.

The spelling of 9281793640 in words is "nine billion, two hundred eighty-one million, seven hundred ninety-three thousand, six hundred forty".