28043184473 has 2 divisors, whose sum is σ = 28043184474. Its totient is φ = 28043184472.

The previous prime is 28043184457. The next prime is 28043184487. The reversal of 28043184473 is 37448134082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27956843209 + 86341264 = 167203^2 + 9292^2 .

It is a cyclic number.

It is not a de Polignac number, because 28043184473 - 2⁴ = 28043184457 is a prime.

It is not a weakly prime, because it can be changed into another prime (28043184373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14021592236 + 14021592237.

It is an arithmetic number, because the mean of its divisors is an integer number (14021592237).

Almost surely, 2^28043184473 is an apocalyptic number.

It is an amenable number.

28043184473 is a deficient number, since it is larger than the sum of its proper divisors (1).

28043184473 is an equidigital number, since it uses as much as digits as its factorization.

28043184473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 516096, while the sum is 44.

The spelling of 28043184473 in words is "twenty-eight billion, forty-three million, one hundred eighty-four thousand, four hundred seventy-three".