28454854913 has 2 divisors, whose sum is σ = 28454854914. Its totient is φ = 28454854912.

The previous prime is 28454854853. The next prime is 28454854931. The reversal of 28454854913 is 31945845482.

Together with next prime (28454854931) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23786275984 + 4668578929 = 154228^2 + 68327^2 .

It is a cyclic number.

It is not a de Polignac number, because 28454854913 - 2⁶ = 28454854849 is a prime.

It is not a weakly prime, because it can be changed into another prime (28454854933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14227427456 + 14227427457.

It is an arithmetic number, because the mean of its divisors is an integer number (14227427457).

Almost surely, 2^28454854913 is an apocalyptic number.

It is an amenable number.

28454854913 is a deficient number, since it is larger than the sum of its proper divisors (1).

28454854913 is an equidigital number, since it uses as much as digits as its factorization.

28454854913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5529600, while the sum is 53.

The spelling of 28454854913 in words is "twenty-eight billion, four hundred fifty-four million, eight hundred fifty-four thousand, nine hundred thirteen".