28193867511773 has 2 divisors, whose sum is σ = 28193867511774. Its totient is φ = 28193867511772.

The previous prime is 28193867511713. The next prime is 28193867511793. The reversal of 28193867511773 is 37711576839182.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22310535900409 + 5883331611364 = 4723403^2 + 2425558^2 .

It is a cyclic number.

It is not a de Polignac number, because 28193867511773 - 2¹² = 28193867507677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28193867511713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14096933755886 + 14096933755887.

It is an arithmetic number, because the mean of its divisors is an integer number (14096933755887).

Almost surely, 2^{28193867511773} is an apocalyptic number.

It is an amenable number.

28193867511773 is a deficient number, since it is larger than the sum of its proper divisors (1).

28193867511773 is an equidigital number, since it uses as much as digits as its factorization.

28193867511773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 106686720, while the sum is 68.

The spelling of 28193867511773 in words is "twenty-eight trillion, one hundred ninety-three billion, eight hundred sixty-seven million, five hundred eleven thousand, seven hundred seventy-three".