28205383651 has 2 divisors, whose sum is σ = 28205383652. Its totient is φ = 28205383650.

The previous prime is 28205383627. The next prime is 28205383721. The reversal of 28205383651 is 15638350282.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28205383651 - 2³¹ = 26057900003 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28205383598 and 28205383607.

It is not a weakly prime, because it can be changed into another prime (28205383601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14102691825 + 14102691826.

It is an arithmetic number, because the mean of its divisors is an integer number (14102691826).

Almost surely, 2^28205383651 is an apocalyptic number.

28205383651 is a deficient number, since it is larger than the sum of its proper divisors (1).

28205383651 is an equidigital number, since it uses as much as digits as its factorization.

28205383651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 28205383651 in words is "twenty-eight billion, two hundred five million, three hundred eighty-three thousand, six hundred fifty-one".