28604585749 has 2 divisors, whose sum is σ = 28604585750. Its totient is φ = 28604585748.

The previous prime is 28604585741. The next prime is 28604585759. The reversal of 28604585749 is 94758540682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25011422500 + 3593163249 = 158150^2 + 59943^2 .

It is a cyclic number.

It is not a de Polignac number, because 28604585749 - 2³ = 28604585741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28604585693 and 28604585702.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28604585741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14302292874 + 14302292875.

It is an arithmetic number, because the mean of its divisors is an integer number (14302292875).

Almost surely, 2^28604585749 is an apocalyptic number.

It is an amenable number.

28604585749 is a deficient number, since it is larger than the sum of its proper divisors (1).

28604585749 is an equidigital number, since it uses as much as digits as its factorization.

28604585749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19353600, while the sum is 58.

The spelling of 28604585749 in words is "twenty-eight billion, six hundred four million, five hundred eighty-five thousand, seven hundred forty-nine".