28080006457 has 2 divisors, whose sum is σ = 28080006458. Its totient is φ = 28080006456.

The previous prime is 28080006443. The next prime is 28080006511. The reversal of 28080006457 is 75460008082.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27375687936 + 704318521 = 165456^2 + 26539^2 .

It is a cyclic number.

It is not a de Polignac number, because 28080006457 - 2¹⁵ = 28079973689 is a prime.

It is not a weakly prime, because it can be changed into another prime (28080066457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14040003228 + 14040003229.

It is an arithmetic number, because the mean of its divisors is an integer number (14040003229).

Almost surely, 2^28080006457 is an apocalyptic number.

It is an amenable number.

28080006457 is a deficient number, since it is larger than the sum of its proper divisors (1).

28080006457 is an equidigital number, since it uses as much as digits as its factorization.

28080006457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 107520, while the sum is 40.

The spelling of 28080006457 in words is "twenty-eight billion, eighty million, six thousand, four hundred fifty-seven".