28409595601 has 2 divisors, whose sum is σ = 28409595602. Its totient is φ = 28409595600.

The previous prime is 28409595551. The next prime is 28409595649. The reversal of 28409595601 is 10659590482.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28407417025 + 2178576 = 168545^2 + 1476^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28409595601 is a prime.

It is not a weakly prime, because it can be changed into another prime (28409595901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14204797800 + 14204797801.

It is an arithmetic number, because the mean of its divisors is an integer number (14204797801).

Almost surely, 2^28409595601 is an apocalyptic number.

It is an amenable number.

28409595601 is a deficient number, since it is larger than the sum of its proper divisors (1).

28409595601 is an equidigital number, since it uses as much as digits as its factorization.

28409595601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 777600, while the sum is 49.

The spelling of 28409595601 in words is "twenty-eight billion, four hundred nine million, five hundred ninety-five thousand, six hundred one".