620733336779 has 2 divisors, whose sum is σ = 620733336780. Its totient is φ = 620733336778.

The previous prime is 620733336757. The next prime is 620733336907. The reversal of 620733336779 is 977633337026.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 620733336779 - 2²⁰ = 620732288203 is a prime.

It is not a weakly prime, because it can be changed into another prime (620733336709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310366668389 + 310366668390.

It is an arithmetic number, because the mean of its divisors is an integer number (310366668390).

Almost surely, 2^620733336779 is an apocalyptic number.

620733336779 is a deficient number, since it is larger than the sum of its proper divisors (1).

620733336779 is an equidigital number, since it uses as much as digits as its factorization.

620733336779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18003384, while the sum is 56.

The spelling of 620733336779 in words is "six hundred twenty billion, seven hundred thirty-three million, three hundred thirty-six thousand, seven hundred seventy-nine".