28790528593 has 2 divisors, whose sum is σ = 28790528594. Its totient is φ = 28790528592.

The previous prime is 28790528587. The next prime is 28790528597. The reversal of 28790528593 is 39582509782.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26433231889 + 2357296704 = 162583^2 + 48552^2 .

It is a cyclic number.

It is not a de Polignac number, because 28790528593 - 2⁵ = 28790528561 is a prime.

It is not a weakly prime, because it can be changed into another prime (28790528597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14395264296 + 14395264297.

It is an arithmetic number, because the mean of its divisors is an integer number (14395264297).

Almost surely, 2^28790528593 is an apocalyptic number.

It is an amenable number.

28790528593 is a deficient number, since it is larger than the sum of its proper divisors (1).

28790528593 is an equidigital number, since it uses as much as digits as its factorization.

28790528593 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10886400, while the sum is 58.

The spelling of 28790528593 in words is "twenty-eight billion, seven hundred ninety million, five hundred twenty-eight thousand, five hundred ninety-three".