47847473858 has 18 divisors (see below), whose sum is σ = 72363006891. Its totient is φ = 23728075584.

The previous prime is 47847473857. The next prime is 47847473899. The reversal of 47847473858 is 85837474874.

It can be written as a sum of positive squares in 5 ways, for example, as 6700568449 + 41146905409 = 81857^2 + 202847^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=154673.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47847473794 and 47847473803.

It is not an unprimeable number, because it can be changed into a prime (47847473857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 42379838 + ... + 42380966.

Almost surely, 2^47847473858 is an apocalyptic number.

47847473858 is a deficient number, since it is larger than the sum of its proper divisors (24515533033).

47847473858 is an frugal number, since it uses more digits than its factorization.

47847473858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2534 (or 1268 counting only the distinct ones).

The product of its digits is 168591360, while the sum is 65.

The spelling of 47847473858 in words is "forty-seven billion, eight hundred forty-seven million, four hundred seventy-three thousand, eight hundred fifty-eight".