28905786053 has 2 divisors, whose sum is σ = 28905786054. Its totient is φ = 28905786052.

The previous prime is 28905785999. The next prime is 28905786079. The reversal of 28905786053 is 35068750982.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27090855649 + 1814930404 = 164593^2 + 42602^2 .

It is a cyclic number.

It is not a de Polignac number, because 28905786053 - 2²² = 28901591749 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28905785986 and 28905786004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28905786253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14452893026 + 14452893027.

It is an arithmetic number, because the mean of its divisors is an integer number (14452893027).

Almost surely, 2^28905786053 is an apocalyptic number.

It is an amenable number.

28905786053 is a deficient number, since it is larger than the sum of its proper divisors (1).

28905786053 is an equidigital number, since it uses as much as digits as its factorization.

28905786053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3628800, while the sum is 53.

The spelling of 28905786053 in words is "twenty-eight billion, nine hundred five million, seven hundred eighty-six thousand, fifty-three".