9942283521 has 27 divisors (see below), whose sum is σ = 14924791713. Its totient is φ = 6622804620.

The previous prime is 9942283511. The next prime is 9942283529. The reversal of 9942283521 is 1253822499.

The square root of 9942283521 is 99711.

It is a perfect power (a square), and thus also a powerful number.

9942283521 is a `hidden beast` number, since 9 + 9 + 42 + 2 + 83 + 521 = 666.

It is a tau number, because it is divible by the number of its divisors (27).

It is a de Polignac number, because none of the positive numbers 2^k-9942283521 is a prime.

It is a super-2 number, since 2×9942283521² (a number of 21 digits) contains 22 as substring.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (9942283529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 8075976 + ... + 8077206.

Almost surely, 2^9942283521 is an apocalyptic number.

9942283521 is the 99711-st square number.

9942283521 is the 49856-th centered octagonal number.

It is an amenable number.

9942283521 is a deficient number, since it is larger than the sum of its proper divisors (4982508192).

9942283521 is an frugal number, since it uses more digits than its factorization.

9942283521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2486 (or 1234 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The cubic root of 9942283521 is about 2150.2818106174.

The spelling of 9942283521 in words is "nine billion, nine hundred forty-two million, two hundred eighty-three thousand, five hundred twenty-one".