385620665797 has 2 divisors, whose sum is σ = 385620665798. Its totient is φ = 385620665796.

The previous prime is 385620665789. The next prime is 385620665933. The reversal of 385620665797 is 797566026583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 229588555716 + 156032110081 = 479154^2 + 395009^2 .

It is an emirp because it is prime and its reverse (797566026583) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 385620665797 - 2³ = 385620665789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385620665597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192810332898 + 192810332899.

It is an arithmetic number, because the mean of its divisors is an integer number (192810332899).

Almost surely, 2^385620665797 is an apocalyptic number.

It is an amenable number.

385620665797 is a deficient number, since it is larger than the sum of its proper divisors (1).

385620665797 is an equidigital number, since it uses as much as digits as its factorization.

385620665797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 114307200, while the sum is 64.

The spelling of 385620665797 in words is "three hundred eighty-five billion, six hundred twenty million, six hundred sixty-five thousand, seven hundred ninety-seven".