620120566939 has 2 divisors, whose sum is σ = 620120566940. Its totient is φ = 620120566938.

The previous prime is 620120566909. The next prime is 620120566973. The reversal of 620120566939 is 939665021026.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 620120566939 - 2⁹ = 620120566427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 620120566892 and 620120566901.

It is not a weakly prime, because it can be changed into another prime (620120566909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310060283469 + 310060283470.

It is an arithmetic number, because the mean of its divisors is an integer number (310060283470).

Almost surely, 2^620120566939 is an apocalyptic number.

620120566939 is a deficient number, since it is larger than the sum of its proper divisors (1).

620120566939 is an equidigital number, since it uses as much as digits as its factorization.

620120566939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1049760, while the sum is 49.

The spelling of 620120566939 in words is "six hundred twenty billion, one hundred twenty million, five hundred sixty-six thousand, nine hundred thirty-nine".