47171842862847 has 8 divisors (see below), whose sum is σ = 65630390070144. Its totient is φ = 30080595448728.

The previous prime is 47171842862831. The next prime is 47171842862869. The reversal of 47171842862847 is 74826824817174.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47171842862847 - 2⁴ = 47171842862831 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (69), and also a Moran number because the ratio is a prime number: 683649896563 = 47171842862847 / (4 + 7 + 1 + 7 + 1 + 8 + 4 + 2 + 8 + 6 + 2 + 8 + 4 + 7).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47171842862827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341824948213 + ... + 341824948350.

It is an arithmetic number, because the mean of its divisors is an integer number (8203798758768).

Almost surely, 2^{47171842862847} is an apocalyptic number.

47171842862847 is a deficient number, since it is larger than the sum of its proper divisors (18458547207297).

47171842862847 is a wasteful number, since it uses less digits than its factorization.

47171842862847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683649896589.

The product of its digits is 269746176, while the sum is 69.

The spelling of 47171842862847 in words is "forty-seven trillion, one hundred seventy-one billion, eight hundred forty-two million, eight hundred sixty-two thousand, eight hundred forty-seven".