619644040993 has 2 divisors, whose sum is σ = 619644040994. Its totient is φ = 619644040992.

The previous prime is 619644040969. The next prime is 619644041017. The reversal of 619644040993 is 399040446916.

It is a balanced prime because it is at equal distance from previous prime (619644040969) and next prime (619644041017).

It can be written as a sum of positive squares in only one way, i.e., 551050859584 + 68593181409 = 742328^2 + 261903^2 .

It is a cyclic number.

It is not a de Polignac number, because 619644040993 - 2¹³ = 619644032801 is a prime.

It is not a weakly prime, because it can be changed into another prime (619644040903) 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, 309822020496 + 309822020497.

It is an arithmetic number, because the mean of its divisors is an integer number (309822020497).

Almost surely, 2^619644040993 is an apocalyptic number.

It is an amenable number.

619644040993 is a deficient number, since it is larger than the sum of its proper divisors (1).

619644040993 is an equidigital number, since it uses as much as digits as its factorization.

619644040993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5038848, while the sum is 55.

The spelling of 619644040993 in words is "six hundred nineteen billion, six hundred forty-four million, forty thousand, nine hundred ninety-three".