478737351641 has 2 divisors, whose sum is σ = 478737351642. Its totient is φ = 478737351640.

The previous prime is 478737351619. The next prime is 478737351733. The reversal of 478737351641 is 146153737874.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 271071216025 + 207666135616 = 520645^2 + 455704^2 .

It is a cyclic number.

It is not a de Polignac number, because 478737351641 - 2¹⁰ = 478737350617 is a prime.

It is not a weakly prime, because it can be changed into another prime (478737351601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239368675820 + 239368675821.

It is an arithmetic number, because the mean of its divisors is an integer number (239368675821).

Almost surely, 2^478737351641 is an apocalyptic number.

It is an amenable number.

478737351641 is a deficient number, since it is larger than the sum of its proper divisors (1).

478737351641 is an equidigital number, since it uses as much as digits as its factorization.

478737351641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11854080, while the sum is 56.

The spelling of 478737351641 in words is "four hundred seventy-eight billion, seven hundred thirty-seven million, three hundred fifty-one thousand, six hundred forty-one".