478737511613 has 2 divisors, whose sum is σ = 478737511614. Its totient is φ = 478737511612.

The previous prime is 478737511597. The next prime is 478737511627. The reversal of 478737511613 is 316115737874.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 478472408089 + 265103524 = 691717^2 + 16282^2 .

It is a cyclic number.

It is not a de Polignac number, because 478737511613 - 2⁴ = 478737511597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478737510613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239368755806 + 239368755807.

It is an arithmetic number, because the mean of its divisors is an integer number (239368755807).

Almost surely, 2^478737511613 is an apocalyptic number.

It is an amenable number.

478737511613 is a deficient number, since it is larger than the sum of its proper divisors (1).

478737511613 is an equidigital number, since it uses as much as digits as its factorization.

478737511613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2963520, while the sum is 53.

The spelling of 478737511613 in words is "four hundred seventy-eight billion, seven hundred thirty-seven million, five hundred eleven thousand, six hundred thirteen".