427685534513 has 2 divisors, whose sum is σ = 427685534514. Its totient is φ = 427685534512.

The previous prime is 427685534501. The next prime is 427685534519. The reversal of 427685534513 is 315435586724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 359414638144 + 68270896369 = 599512^2 + 261287^2 .

It is a cyclic number.

It is not a de Polignac number, because 427685534513 - 2¹⁰ = 427685533489 is a prime.

It is not a weakly prime, because it can be changed into another prime (427685534519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213842767256 + 213842767257.

It is an arithmetic number, because the mean of its divisors is an integer number (213842767257).

Almost surely, 2^427685534513 is an apocalyptic number.

It is an amenable number.

427685534513 is a deficient number, since it is larger than the sum of its proper divisors (1).

427685534513 is an equidigital number, since it uses as much as digits as its factorization.

427685534513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096000, while the sum is 53.

The spelling of 427685534513 in words is "four hundred twenty-seven billion, six hundred eighty-five million, five hundred thirty-four thousand, five hundred thirteen".