28050082813 has 2 divisors, whose sum is σ = 28050082814. Its totient is φ = 28050082812.

The previous prime is 28050082799. The next prime is 28050082817. The reversal of 28050082813 is 31828005082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14622371929 + 13427710884 = 120923^2 + 115878^2 .

It is a cyclic number.

It is not a de Polignac number, because 28050082813 - 2⁹ = 28050082301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28050082817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14025041406 + 14025041407.

It is an arithmetic number, because the mean of its divisors is an integer number (14025041407).

Almost surely, 2^28050082813 is an apocalyptic number.

It is an amenable number.

28050082813 is a deficient number, since it is larger than the sum of its proper divisors (1).

28050082813 is an equidigital number, since it uses as much as digits as its factorization.

28050082813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30720, while the sum is 37.

Adding to 28050082813 its reverse (31828005082), we get a palindrome (59878087895).

The spelling of 28050082813 in words is "twenty-eight billion, fifty million, eighty-two thousand, eight hundred thirteen".