28321075351 has 2 divisors, whose sum is σ = 28321075352. Its totient is φ = 28321075350.

The previous prime is 28321075331. The next prime is 28321075357. The reversal of 28321075351 is 15357012382.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28321075351 - 2¹¹ = 28321073303 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28321075351.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28321075357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14160537675 + 14160537676.

It is an arithmetic number, because the mean of its divisors is an integer number (14160537676).

Almost surely, 2^28321075351 is an apocalyptic number.

28321075351 is a deficient number, since it is larger than the sum of its proper divisors (1).

28321075351 is an equidigital number, since it uses as much as digits as its factorization.

28321075351 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 37.

The spelling of 28321075351 in words is "twenty-eight billion, three hundred twenty-one million, seventy-five thousand, three hundred fifty-one".