28555484376803 has 2 divisors, whose sum is σ = 28555484376804. Its totient is φ = 28555484376802.

The previous prime is 28555484376799. The next prime is 28555484376833. The reversal of 28555484376803 is 30867348455582.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28555484376803 - 2² = 28555484376799 is a prime.

It is not a weakly prime, because it can be changed into another prime (28555484376833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14277742188401 + 14277742188402.

It is an arithmetic number, because the mean of its divisors is an integer number (14277742188402).

Almost surely, 2^{28555484376803} is an apocalyptic number.

28555484376803 is a deficient number, since it is larger than the sum of its proper divisors (1).

28555484376803 is an equidigital number, since it uses as much as digits as its factorization.

28555484376803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 774144000, while the sum is 68.

The spelling of 28555484376803 in words is "twenty-eight trillion, five hundred fifty-five billion, four hundred eighty-four million, three hundred seventy-six thousand, eight hundred three".