28021314733 has 2 divisors, whose sum is σ = 28021314734. Its totient is φ = 28021314732.

The previous prime is 28021314689. The next prime is 28021314751. The reversal of 28021314733 is 33741312082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18404178244 + 9617136489 = 135662^2 + 98067^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28021314733 is a prime.

It is a super-2 number, since 2×28021314733² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28021317733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14010657366 + 14010657367.

It is an arithmetic number, because the mean of its divisors is an integer number (14010657367).

Almost surely, 2^28021314733 is an apocalyptic number.

It is an amenable number.

28021314733 is a deficient number, since it is larger than the sum of its proper divisors (1).

28021314733 is an equidigital number, since it uses as much as digits as its factorization.

28021314733 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 34.

The spelling of 28021314733 in words is "twenty-eight billion, twenty-one million, three hundred fourteen thousand, seven hundred thirty-three".