9822728523 has 6 divisors (see below), whose sum is σ = 13097200252. Its totient is φ = 6548371240.

The previous prime is 9822728501. The next prime is 9822728569. The reversal of 9822728523 is 3258272289.

It is not a de Polignac number, because 9822728523 - 2⁵ = 9822728491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9822728323) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 143053 + ... + 200273.

Almost surely, 2^9822728523 is an apocalyptic number.

9822728523 is a deficient number, since it is larger than the sum of its proper divisors (3274471729).

9822728523 is an frugal number, since it uses more digits than its factorization.

9822728523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114445 (or 57224 counting only the distinct ones).

The product of its digits is 967680, while the sum is 48.

The square root of 9822728523 is about 99109.6792598987. The cubic root of 9822728523 is about 2141.6280535491.

Multiplying 9822728523 by its sum of digits (48), we get a square (471490969104 = 686652²).

The spelling of 9822728523 in words is "nine billion, eight hundred twenty-two million, seven hundred twenty-eight thousand, five hundred twenty-three".