28057722559 has 2 divisors, whose sum is σ = 28057722560. Its totient is φ = 28057722558.

The previous prime is 28057722529. The next prime is 28057722601. The reversal of 28057722559 is 95522775082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28057722559 - 2⁵ = 28057722527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28057722529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14028861279 + 14028861280.

It is an arithmetic number, because the mean of its divisors is an integer number (14028861280).

Almost surely, 2^28057722559 is an apocalyptic number.

28057722559 is a deficient number, since it is larger than the sum of its proper divisors (1).

28057722559 is an equidigital number, since it uses as much as digits as its factorization.

28057722559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528000, while the sum is 52.

The spelling of 28057722559 in words is "twenty-eight billion, fifty-seven million, seven hundred twenty-two thousand, five hundred fifty-nine".