611425210309 has 2 divisors, whose sum is σ = 611425210310. Its totient is φ = 611425210308.

The previous prime is 611425210261. The next prime is 611425210321. The reversal of 611425210309 is 903012524116.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 562042593025 + 49382617284 = 749695^2 + 222222^2 .

It is a cyclic number.

It is not a de Polignac number, because 611425210309 - 2⁹ = 611425209797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (611425210379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305712605154 + 305712605155.

It is an arithmetic number, because the mean of its divisors is an integer number (305712605155).

Almost surely, 2^611425210309 is an apocalyptic number.

It is an amenable number.

611425210309 is a deficient number, since it is larger than the sum of its proper divisors (1).

611425210309 is an equidigital number, since it uses as much as digits as its factorization.

611425210309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 34.

The spelling of 611425210309 in words is "six hundred eleven billion, four hundred twenty-five million, two hundred ten thousand, three hundred nine".