620943208579 has 2 divisors, whose sum is σ = 620943208580. Its totient is φ = 620943208578.

The previous prime is 620943208577. The next prime is 620943208601. The reversal of 620943208579 is 975802349026.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 620943208579 - 2¹ = 620943208577 is a prime.

Together with 620943208577, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (620943208577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310471604289 + 310471604290.

It is an arithmetic number, because the mean of its divisors is an integer number (310471604290).

Almost surely, 2^620943208579 is an apocalyptic number.

620943208579 is a deficient number, since it is larger than the sum of its proper divisors (1).

620943208579 is an equidigital number, since it uses as much as digits as its factorization.

620943208579 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6531840, while the sum is 55.

The spelling of 620943208579 in words is "six hundred twenty billion, nine hundred forty-three million, two hundred eight thousand, five hundred seventy-nine".