28350409961 has 2 divisors, whose sum is σ = 28350409962. Its totient is φ = 28350409960.

The previous prime is 28350409883. The next prime is 28350409987. The reversal of 28350409961 is 16990405382.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16682305600 + 11668104361 = 129160^2 + 108019^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28350409961 is a prime.

It is not a weakly prime, because it can be changed into another prime (28350406961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14175204980 + 14175204981.

It is an arithmetic number, because the mean of its divisors is an integer number (14175204981).

Almost surely, 2^28350409961 is an apocalyptic number.

It is an amenable number.

28350409961 is a deficient number, since it is larger than the sum of its proper divisors (1).

28350409961 is an equidigital number, since it uses as much as digits as its factorization.

28350409961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 47.

The spelling of 28350409961 in words is "twenty-eight billion, three hundred fifty million, four hundred nine thousand, nine hundred sixty-one".