47974729171 has 4 divisors (see below), whose sum is σ = 48352483072. Its totient is φ = 47596975272.

The previous prime is 47974729163. The next prime is 47974729207. The reversal of 47974729171 is 17192747974.

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

It is a cyclic number.

It is not a de Polignac number, because 47974729171 - 2³ = 47974729163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47974729471) 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 3 ways as a sum of consecutive naturals, for example, 188876760 + ... + 188877013.

It is an arithmetic number, because the mean of its divisors is an integer number (12088120768).

Almost surely, 2^47974729171 is an apocalyptic number.

47974729171 is a deficient number, since it is larger than the sum of its proper divisors (377753901).

47974729171 is a wasteful number, since it uses less digits than its factorization.

47974729171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377753900.

The product of its digits is 6223392, while the sum is 58.

The spelling of 47974729171 in words is "forty-seven billion, nine hundred seventy-four million, seven hundred twenty-nine thousand, one hundred seventy-one".