472745831665185 has 24 divisors (see below), whose sum is σ = 882458885776104. Its totient is φ = 232736409434880.

The previous prime is 472745831665169. The next prime is 472745831665189. The reversal of 472745831665185 is 581566138547274.

472745831665185 is a `hidden beast` number, since 4 + 7 + 2 + 7 + 45 + 8 + 3 + 1 + 66 + 518 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 44281664875809 + 428464166789376 = 6654447^2 + 20699376^2 .

It is not a de Polignac number, because 472745831665185 - 2⁴ = 472745831665169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (472745831665189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 404056265796 + ... + 404056266965.

It is an arithmetic number, because the mean of its divisors is an integer number (36769120240671).

Almost surely, 2^{472745831665185} is an apocalyptic number.

472745831665185 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

472745831665185 is a deficient number, since it is larger than the sum of its proper divisors (409713054110919).

472745831665185 is a wasteful number, since it uses less digits than its factorization.

472745831665185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808112532785 (or 808112532782 counting only the distinct ones).

The product of its digits is 1354752000, while the sum is 72.

The spelling of 472745831665185 in words is "four hundred seventy-two trillion, seven hundred forty-five billion, eight hundred thirty-one million, six hundred sixty-five thousand, one hundred eighty-five".