620483787409 has 2 divisors, whose sum is σ = 620483787410. Its totient is φ = 620483787408.

The previous prime is 620483787397. The next prime is 620483787439. The reversal of 620483787409 is 904787384026.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 486108756225 + 134375031184 = 697215^2 + 366572^2 .

It is a cyclic number.

It is not a de Polignac number, because 620483787409 - 2¹⁹ = 620483263121 is a prime.

It is not a weakly prime, because it can be changed into another prime (620483787439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310241893704 + 310241893705.

It is an arithmetic number, because the mean of its divisors is an integer number (310241893705).

Almost surely, 2^620483787409 is an apocalyptic number.

It is an amenable number.

620483787409 is a deficient number, since it is larger than the sum of its proper divisors (1).

620483787409 is an equidigital number, since it uses as much as digits as its factorization.

620483787409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16257024, while the sum is 58.

The spelling of 620483787409 in words is "six hundred twenty billion, four hundred eighty-three million, seven hundred eighty-seven thousand, four hundred nine".