2455728281863 has 2 divisors, whose sum is σ = 2455728281864. Its totient is φ = 2455728281862.

The previous prime is 2455728281861. The next prime is 2455728281953. The reversal of 2455728281863 is 3681828275542.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2455728281863 - 2¹ = 2455728281861 is a prime.

Together with 2455728281861, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2455728281861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1227864140931 + 1227864140932.

It is an arithmetic number, because the mean of its divisors is an integer number (1227864140932).

Almost surely, 2^{2455728281863} is an apocalyptic number.

2455728281863 is a deficient number, since it is larger than the sum of its proper divisors (1).

2455728281863 is an equidigital number, since it uses as much as digits as its factorization.

2455728281863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51609600, while the sum is 61.

The spelling of 2455728281863 in words is "two trillion, four hundred fifty-five billion, seven hundred twenty-eight million, two hundred eighty-one thousand, eight hundred sixty-three".