28155455803 has 2 divisors, whose sum is σ = 28155455804. Its totient is φ = 28155455802.

The previous prime is 28155455749. The next prime is 28155455827. The reversal of 28155455803 is 30855455182.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28155455803 - 2¹⁷ = 28155324731 is a prime.

It is not a weakly prime, because it can be changed into another prime (28155453803) 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, 14077727901 + 14077727902.

It is an arithmetic number, because the mean of its divisors is an integer number (14077727902).

Almost surely, 2^28155455803 is an apocalyptic number.

28155455803 is a deficient number, since it is larger than the sum of its proper divisors (1).

28155455803 is an equidigital number, since it uses as much as digits as its factorization.

28155455803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960000, while the sum is 46.

The spelling of 28155455803 in words is "twenty-eight billion, one hundred fifty-five million, four hundred fifty-five thousand, eight hundred three".