47415312173 has 4 divisors (see below), whose sum is σ = 47419797180. Its totient is φ = 47410827168.

The previous prime is 47415312157. The next prime is 47415312227. The reversal of 47415312173 is 37121351474.

47415312173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12849809449 + 34565502724 = 113357^2 + 185918^2 .

It is a cyclic number.

It is not a de Polignac number, because 47415312173 - 2⁴ = 47415312157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47415312103) 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, 2226608 + ... + 2247801.

It is an arithmetic number, because the mean of its divisors is an integer number (11854949295).

Almost surely, 2^47415312173 is an apocalyptic number.

It is an amenable number.

47415312173 is a deficient number, since it is larger than the sum of its proper divisors (4485007).

47415312173 is a wasteful number, since it uses less digits than its factorization.

47415312173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4485006.

The product of its digits is 70560, while the sum is 38.

The spelling of 47415312173 in words is "forty-seven billion, four hundred fifteen million, three hundred twelve thousand, one hundred seventy-three".