845375676709 has 2 divisors, whose sum is σ = 845375676710. Its totient is φ = 845375676708.

The previous prime is 845375676703. The next prime is 845375676763. The reversal of 845375676709 is 907676573548.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 738379304100 + 106996372609 = 859290^2 + 327103^2 .

It is a cyclic number.

It is not a de Polignac number, because 845375676709 - 2³⁹ = 295619862821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (845375676703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422687838354 + 422687838355.

It is an arithmetic number, because the mean of its divisors is an integer number (422687838355).

Almost surely, 2^845375676709 is an apocalyptic number.

It is an amenable number.

845375676709 is a deficient number, since it is larger than the sum of its proper divisors (1).

845375676709 is an equidigital number, since it uses as much as digits as its factorization.

845375676709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 266716800, while the sum is 67.

The spelling of 845375676709 in words is "eight hundred forty-five billion, three hundred seventy-five million, six hundred seventy-six thousand, seven hundred nine".