16428425597 has 2 divisors, whose sum is σ = 16428425598. Its totient is φ = 16428425596.

The previous prime is 16428425591. The next prime is 16428425623. The reversal of 16428425597 is 79552482461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12084824761 + 4343600836 = 109931^2 + 65906^2 .

It is a cyclic number.

It is not a de Polignac number, because 16428425597 - 2²² = 16424231293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16428425591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8214212798 + 8214212799.

It is an arithmetic number, because the mean of its divisors is an integer number (8214212799).

Almost surely, 2^16428425597 is an apocalyptic number.

It is an amenable number.

16428425597 is a deficient number, since it is larger than the sum of its proper divisors (1).

16428425597 is an equidigital number, since it uses as much as digits as its factorization.

16428425597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4838400, while the sum is 53.

The spelling of 16428425597 in words is "sixteen billion, four hundred twenty-eight million, four hundred twenty-five thousand, five hundred ninety-seven".