473664662289 has 81 divisors (see below), whose sum is σ = 862158856689. Its totient is φ = 249745991040.

The previous prime is 473664662279. The next prime is 473664662291. The reversal of 473664662289 is 982266466374.

The square root of 473664662289 is 688233.

It is a perfect power (a square), and thus also a powerful number.

473664662289 is a `hidden beast` number, since 4 + 7 + 366 + 46 + 6 + 228 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 393862932225 + 79801730064 = 627585^2 + 282492^2 .

It is not a de Polignac number, because 473664662289 - 2¹³ = 473664654097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (473664662269) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 187886349 + ... + 187888869.

Almost surely, 2^473664662289 is an apocalyptic number.

473664662289 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

473664662289 is the 688233-rd square number.

473664662289 is the 344117-th centered octagonal number.

It is an amenable number.

473664662289 is a deficient number, since it is larger than the sum of its proper divisors (388494194400).

473664662289 is an equidigital number, since it uses as much as digits as its factorization.

473664662289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5088 (or 2544 counting only the distinct ones).

The product of its digits is 125411328, while the sum is 63.

The spelling of 473664662289 in words is "four hundred seventy-three billion, six hundred sixty-four million, six hundred sixty-two thousand, two hundred eighty-nine".