28390493753 has 2 divisors, whose sum is σ = 28390493754. Its totient is φ = 28390493752.

The previous prime is 28390493741. The next prime is 28390493759. The reversal of 28390493753 is 35739409382.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27586884649 + 803609104 = 166093^2 + 28348^2 .

It is a cyclic number.

It is not a de Polignac number, because 28390493753 - 2⁸ = 28390493497 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28390493695 and 28390493704.

It is not a weakly prime, because it can be changed into another prime (28390493759) 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, 14195246876 + 14195246877.

It is an arithmetic number, because the mean of its divisors is an integer number (14195246877).

Almost surely, 2^28390493753 is an apocalyptic number.

It is an amenable number.

28390493753 is a deficient number, since it is larger than the sum of its proper divisors (1).

28390493753 is an equidigital number, since it uses as much as digits as its factorization.

28390493753 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4898880, while the sum is 53.

The spelling of 28390493753 in words is "twenty-eight billion, three hundred ninety million, four hundred ninety-three thousand, seven hundred fifty-three".