475427637847 has 2 divisors, whose sum is σ = 475427637848. Its totient is φ = 475427637846.

The previous prime is 475427637821. The next prime is 475427637887. The reversal of 475427637847 is 748736724574.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 475427637847 - 2¹¹ = 475427635799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (475427637887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237713818923 + 237713818924.

It is an arithmetic number, because the mean of its divisors is an integer number (237713818924).

Almost surely, 2^475427637847 is an apocalyptic number.

475427637847 is a deficient number, since it is larger than the sum of its proper divisors (1).

475427637847 is an equidigital number, since it uses as much as digits as its factorization.

475427637847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 221276160, while the sum is 64.

The spelling of 475427637847 in words is "four hundred seventy-five billion, four hundred twenty-seven million, six hundred thirty-seven thousand, eight hundred forty-seven".