6425128201 has 2 divisors, whose sum is σ = 6425128202. Its totient is φ = 6425128200.

The previous prime is 6425128183. The next prime is 6425128211. The reversal of 6425128201 is 1028215246.

6425128201 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6364210176 + 60918025 = 79776^2 + 7805^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6425128201 is a prime.

It is not a weakly prime, because it can be changed into another prime (6425128211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3212564100 + 3212564101.

It is an arithmetic number, because the mean of its divisors is an integer number (3212564101).

Almost surely, 2^6425128201 is an apocalyptic number.

It is an amenable number.

6425128201 is a deficient number, since it is larger than the sum of its proper divisors (1).

6425128201 is an equidigital number, since it uses as much as digits as its factorization.

6425128201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 6425128201 is about 80156.8974012842. The cubic root of 6425128201 is about 1859.0622514093.

The spelling of 6425128201 in words is "six billion, four hundred twenty-five million, one hundred twenty-eight thousand, two hundred one".