7128265061 has 2 divisors, whose sum is σ = 7128265062. Its totient is φ = 7128265060.

The previous prime is 7128265057. The next prime is 7128265063. The reversal of 7128265061 is 1605628217.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5278749025 + 1849516036 = 72655^2 + 43006^2 .

It is an emirp because it is prime and its reverse (1605628217) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7128265061 - 2² = 7128265057 is a prime.

Together with 7128265063, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7128265063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3564132530 + 3564132531.

It is an arithmetic number, because the mean of its divisors is an integer number (3564132531).

Almost surely, 2^7128265061 is an apocalyptic number.

It is an amenable number.

7128265061 is a deficient number, since it is larger than the sum of its proper divisors (1).

7128265061 is an equidigital number, since it uses as much as digits as its factorization.

7128265061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 7128265061 is about 84429.0534176476. The cubic root of 7128265061 is about 1924.5444527034.

The spelling of 7128265061 in words is "seven billion, one hundred twenty-eight million, two hundred sixty-five thousand, sixty-one".