478621793597 has 2 divisors, whose sum is σ = 478621793598. Its totient is φ = 478621793596.

The previous prime is 478621793581. The next prime is 478621793711. The reversal of 478621793597 is 795397126874.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 340876151716 + 137745641881 = 583846^2 + 371141^2 .

It is a cyclic number.

It is not a de Polignac number, because 478621793597 - 2⁴ = 478621793581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478621793527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239310896798 + 239310896799.

It is an arithmetic number, because the mean of its divisors is an integer number (239310896799).

Almost surely, 2^478621793597 is an apocalyptic number.

It is an amenable number.

478621793597 is a deficient number, since it is larger than the sum of its proper divisors (1).

478621793597 is an equidigital number, since it uses as much as digits as its factorization.

478621793597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 160030080, while the sum is 68.

The spelling of 478621793597 in words is "four hundred seventy-eight billion, six hundred twenty-one million, seven hundred ninety-three thousand, five hundred ninety-seven".