9021382782813 has 12 divisors (see below), whose sum is σ = 13031526247740. Its totient is φ = 6013959801216.

The previous prime is 9021382782787. The next prime is 9021382782817. The reversal of 9021382782813 is 3182872831209.

9021382782813 is a `hidden beast` number, since 9 + 0 + 213 + 82 + 78 + 281 + 3 = 666.

9021382782813 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 3317778461529 + 5703604321284 = 1821477^2 + 2388222^2 .

It is not a de Polignac number, because 9021382782813 - 2²⁰ = 9021381734237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9021382782813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9021382782817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24422106 + ... + 24788747.

It is an arithmetic number, because the mean of its divisors is an integer number (1085960520645).

Almost surely, 2^{9021382782813} is an apocalyptic number.

It is an amenable number.

9021382782813 is a deficient number, since it is larger than the sum of its proper divisors (4010143464927).

9021382782813 is a wasteful number, since it uses less digits than its factorization.

9021382782813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49231228 (or 49231225 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 9021382782813 in words is "nine trillion, twenty-one billion, three hundred eighty-two million, seven hundred eighty-two thousand, eight hundred thirteen".