28315853593 has 2 divisors, whose sum is σ = 28315853594. Its totient is φ = 28315853592.

The previous prime is 28315853563. The next prime is 28315853597. The reversal of 28315853593 is 39535851382.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26397150784 + 1918702809 = 162472^2 + 43803^2 .

It is a cyclic number.

It is not a de Polignac number, because 28315853593 - 2¹³ = 28315845401 is a prime.

It is a super-2 number, since 2×28315853593² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28315853593.

It is not a weakly prime, because it can be changed into another prime (28315853597) 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, 14157926796 + 14157926797.

It is an arithmetic number, because the mean of its divisors is an integer number (14157926797).

Almost surely, 2^28315853593 is an apocalyptic number.

It is an amenable number.

28315853593 is a deficient number, since it is larger than the sum of its proper divisors (1).

28315853593 is an equidigital number, since it uses as much as digits as its factorization.

28315853593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888000, while the sum is 52.

The spelling of 28315853593 in words is "twenty-eight billion, three hundred fifteen million, eight hundred fifty-three thousand, five hundred ninety-three".