28333333333 has 2 divisors, whose sum is σ = 28333333334. Its totient is φ = 28333333332.

The previous prime is 28333333307. The next prime is 28333333363. The reversal of 28333333333 is 33333333382.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14912805924 + 13420527409 = 122118^2 + 115847^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28333333333 is a prime.

28333333333 is a modest number, since divided by 333333 gives 28333 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 28333333292 and 28333333301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28333333363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14166666666 + 14166666667.

It is an arithmetic number, because the mean of its divisors is an integer number (14166666667).

Almost surely, 2^28333333333 is an apocalyptic number.

It is an amenable number.

28333333333 is a deficient number, since it is larger than the sum of its proper divisors (1).

28333333333 is an equidigital number, since it uses as much as digits as its factorization.

28333333333 is an evil number, because the sum of its binary digits is even.

The product of its digits is 314928, while the sum is 37.

The spelling of 28333333333 in words is "twenty-eight billion, three hundred thirty-three million, three hundred thirty-three thousand, three hundred thirty-three".