28502774083057 has 2 divisors, whose sum is σ = 28502774083058. Its totient is φ = 28502774083056.

The previous prime is 28502774083039. The next prime is 28502774083067. The reversal of 28502774083057 is 75038047720582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27503741848801 + 999032234256 = 5244401^2 + 999516^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28502774083057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28502774082992 and 28502774083010.

It is not a weakly prime, because it can be changed into another prime (28502774083067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14251387041528 + 14251387041529.

It is an arithmetic number, because the mean of its divisors is an integer number (14251387041529).

Almost surely, 2^{28502774083057} is an apocalyptic number.

It is an amenable number.

28502774083057 is a deficient number, since it is larger than the sum of its proper divisors (1).

28502774083057 is an equidigital number, since it uses as much as digits as its factorization.

28502774083057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26342400, while the sum is 58.

The spelling of 28502774083057 in words is "twenty-eight trillion, five hundred two billion, seven hundred seventy-four million, eighty-three thousand, fifty-seven".