471475383221 has 2 divisors, whose sum is σ = 471475383222. Its totient is φ = 471475383220.

The previous prime is 471475383187. The next prime is 471475383277. The reversal of 471475383221 is 122383574174.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 437013544900 + 34461838321 = 661070^2 + 185639^2 .

It is a cyclic number.

It is not a de Polignac number, because 471475383221 - 2²² = 471471188917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (471471383221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235737691610 + 235737691611.

It is an arithmetic number, because the mean of its divisors is an integer number (235737691611).

Almost surely, 2^471475383221 is an apocalyptic number.

It is an amenable number.

471475383221 is a deficient number, since it is larger than the sum of its proper divisors (1).

471475383221 is an equidigital number, since it uses as much as digits as its factorization.

471475383221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1128960, while the sum is 47.

It can be divided in two parts, 4714753 and 83221, that added together give a palindrome (4797974).

The spelling of 471475383221 in words is "four hundred seventy-one billion, four hundred seventy-five million, three hundred eighty-three thousand, two hundred twenty-one".