1865065945079 has 2 divisors, whose sum is σ = 1865065945080. Its totient is φ = 1865065945078.

The previous prime is 1865065945021. The next prime is 1865065945087. The reversal of 1865065945079 is 9705495605681.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1865065945079 - 2³² = 1860770977783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1865065945579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 932532972539 + 932532972540.

It is an arithmetic number, because the mean of its divisors is an integer number (932532972540).

Almost surely, 2^{1865065945079} is an apocalyptic number.

1865065945079 is a deficient number, since it is larger than the sum of its proper divisors (1).

1865065945079 is an equidigital number, since it uses as much as digits as its factorization.

1865065945079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648000, while the sum is 65.

The spelling of 1865065945079 in words is "one trillion, eight hundred sixty-five billion, sixty-five million, nine hundred forty-five thousand, seventy-nine".