28424257853 has 2 divisors, whose sum is σ = 28424257854. Its totient is φ = 28424257852.

The previous prime is 28424257837. The next prime is 28424257861. The reversal of 28424257853 is 35875242482.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20908581604 + 7515676249 = 144598^2 + 86693^2 .

It is a cyclic number.

It is not a de Polignac number, because 28424257853 - 2⁴ = 28424257837 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28424257453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14212128926 + 14212128927.

It is an arithmetic number, because the mean of its divisors is an integer number (14212128927).

Almost surely, 2^28424257853 is an apocalyptic number.

It is an amenable number.

28424257853 is a deficient number, since it is larger than the sum of its proper divisors (1).

28424257853 is an equidigital number, since it uses as much as digits as its factorization.

28424257853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4300800, while the sum is 50.

The spelling of 28424257853 in words is "twenty-eight billion, four hundred twenty-four million, two hundred fifty-seven thousand, eight hundred fifty-three".