620185385243 has 2 divisors, whose sum is σ = 620185385244. Its totient is φ = 620185385242.

The previous prime is 620185385227. The next prime is 620185385353. The reversal of 620185385243 is 342583581026.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 620185385243 - 2⁴ = 620185385227 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (620185385203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310092692621 + 310092692622.

It is an arithmetic number, because the mean of its divisors is an integer number (310092692622).

Almost surely, 2^620185385243 is an apocalyptic number.

620185385243 is a deficient number, since it is larger than the sum of its proper divisors (1).

620185385243 is an equidigital number, since it uses as much as digits as its factorization.

620185385243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1382400, while the sum is 47.

The spelling of 620185385243 in words is "six hundred twenty billion, one hundred eighty-five million, three hundred eighty-five thousand, two hundred forty-three".