47017145205 has 12 divisors (see below), whose sum is σ = 81496385100. Its totient is φ = 25075810752.

The previous prime is 47017145171. The next prime is 47017145233. The reversal of 47017145205 is 50254171074.

It can be written as a sum of positive squares in 2 ways, for example, as 37033538481 + 9983606724 = 192441^2 + 99918^2 .

It is not a de Polignac number, because 47017145205 - 2⁸ = 47017144949 is a prime.

It is a super-2 number, since 2×47017145205² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 47017145205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 522412680 + ... + 522412769.

It is an arithmetic number, because the mean of its divisors is an integer number (6791365425).

Almost surely, 2^47017145205 is an apocalyptic number.

47017145205 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

47017145205 is a deficient number, since it is larger than the sum of its proper divisors (34479239895).

47017145205 is a wasteful number, since it uses less digits than its factorization.

47017145205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044825460 (or 1044825457 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The spelling of 47017145205 in words is "forty-seven billion, seventeen million, one hundred forty-five thousand, two hundred five".