471771561568825 has 18 divisors (see below), whose sum is σ = 680506407587166. Its totient is φ = 323500499360640.

The previous prime is 471771561568799. The next prime is 471771561568841. The reversal of 471771561568825 is 528865165177174.

It can be written as a sum of positive squares in 3 ways, for example, as 6564812471721 + 465206749097104 = 2562189^2 + 21568652^2 .

It is not a de Polignac number, because 471771561568825 - 2¹³ = 471771561560633 is a prime.

It is a super-4 number, since 4×471771561568825⁴ (a number of 60 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 192559819824 + ... + 192559822273.

Almost surely, 2^{471771561568825} is an apocalyptic number.

It is an amenable number.

471771561568825 is a deficient number, since it is larger than the sum of its proper divisors (208734846018341).

471771561568825 is a wasteful number, since it uses less digits than its factorization.

471771561568825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385119642121 (or 385119642109 counting only the distinct ones).

The product of its digits is 790272000, while the sum is 73.

The spelling of 471771561568825 in words is "four hundred seventy-one trillion, seven hundred seventy-one billion, five hundred sixty-one million, five hundred sixty-eight thousand, eight hundred twenty-five".