28250330758313 has 2 divisors, whose sum is σ = 28250330758314. Its totient is φ = 28250330758312.

The previous prime is 28250330758253. The next prime is 28250330758319. The reversal of 28250330758313 is 31385703305282.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24283971727129 + 3966359031184 = 4927877^2 + 1991572^2 .

It is a cyclic number.

It is not a de Polignac number, because 28250330758313 - 2¹⁸ = 28250330496169 is a prime.

It is not a weakly prime, because it can be changed into another prime (28250330758319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14125165379156 + 14125165379157.

It is an arithmetic number, because the mean of its divisors is an integer number (14125165379157).

Almost surely, 2^{28250330758313} is an apocalyptic number.

It is an amenable number.

28250330758313 is a deficient number, since it is larger than the sum of its proper divisors (1).

28250330758313 is an equidigital number, since it uses as much as digits as its factorization.

28250330758313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3628800, while the sum is 50.

The spelling of 28250330758313 in words is "twenty-eight trillion, two hundred fifty billion, three hundred thirty million, seven hundred fifty-eight thousand, three hundred thirteen".