28731716053 has 2 divisors, whose sum is σ = 28731716054. Its totient is φ = 28731716052.

The previous prime is 28731716003. The next prime is 28731716089. The reversal of 28731716053 is 35061713782.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25966744164 + 2764971889 = 161142^2 + 52583^2 .

It is a cyclic number.

It is not a de Polignac number, because 28731716053 - 2²¹ = 28729618901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28731716003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14365858026 + 14365858027.

It is an arithmetic number, because the mean of its divisors is an integer number (14365858027).

Almost surely, 2^28731716053 is an apocalyptic number.

It is an amenable number.

28731716053 is a deficient number, since it is larger than the sum of its proper divisors (1).

28731716053 is an equidigital number, since it uses as much as digits as its factorization.

28731716053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 211680, while the sum is 43.

The spelling of 28731716053 in words is "twenty-eight billion, seven hundred thirty-one million, seven hundred sixteen thousand, fifty-three".