9428133331 has 2 divisors, whose sum is σ = 9428133332. Its totient is φ = 9428133330.

The previous prime is 9428133313. The next prime is 9428133361. The reversal of 9428133331 is 1333318249.

It is a happy number.

Together with previous prime (9428133313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9428133331 is a prime.

It is a super-2 number, since 2×9428133331² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9428133361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4714066665 + 4714066666.

It is an arithmetic number, because the mean of its divisors is an integer number (4714066666).

Almost surely, 2^9428133331 is an apocalyptic number.

9428133331 is a deficient number, since it is larger than the sum of its proper divisors (1).

9428133331 is an equidigital number, since it uses as much as digits as its factorization.

9428133331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 37.

The square root of 9428133331 is about 97098.5753294043. The cubic root of 9428133331 is about 2112.5576623547.

The spelling of 9428133331 in words is "nine billion, four hundred twenty-eight million, one hundred thirty-three thousand, three hundred thirty-one".