427101397813 has 2 divisors, whose sum is σ = 427101397814. Its totient is φ = 427101397812.

The previous prime is 427101397769. The next prime is 427101397817. The reversal of 427101397813 is 318793101724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 368797500369 + 58303897444 = 607287^2 + 241462^2 .

It is a cyclic number.

It is not a de Polignac number, because 427101397813 - 2²⁹ = 426564526901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427101397817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213550698906 + 213550698907.

It is an arithmetic number, because the mean of its divisors is an integer number (213550698907).

Almost surely, 2^427101397813 is an apocalyptic number.

It is an amenable number.

427101397813 is a deficient number, since it is larger than the sum of its proper divisors (1).

427101397813 is an equidigital number, since it uses as much as digits as its factorization.

427101397813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 46.

The spelling of 427101397813 in words is "four hundred twenty-seven billion, one hundred one million, three hundred ninety-seven thousand, eight hundred thirteen".