471106644721 has 4 divisors (see below), whose sum is σ = 474545379492. Its totient is φ = 467667909952.

The previous prime is 471106644719. The next prime is 471106644739. The reversal of 471106644721 is 127446601174.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 127446601174 = 2 ⋅63723300587.

It can be written as a sum of positive squares in 2 ways, for example, as 310818515121 + 160288129600 = 557511^2 + 400360^2 .

It is a cyclic number.

It is not a de Polignac number, because 471106644721 - 2¹ = 471106644719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (471106648721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1719367180 + ... + 1719367453.

It is an arithmetic number, because the mean of its divisors is an integer number (118636344873).

Almost surely, 2^471106644721 is an apocalyptic number.

It is an amenable number.

471106644721 is a deficient number, since it is larger than the sum of its proper divisors (3438734771).

471106644721 is a wasteful number, since it uses less digits than its factorization.

471106644721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3438734770.

The product of its (nonzero) digits is 225792, while the sum is 43.

The spelling of 471106644721 in words is "four hundred seventy-one billion, one hundred six million, six hundred forty-four thousand, seven hundred twenty-one".