47271563242 has 4 divisors (see below), whose sum is σ = 70907344866. Its totient is φ = 23635781620.

The previous prime is 47271563239. The next prime is 47271563249. The reversal of 47271563242 is 24236517274.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24236517274 = 2 ⋅12118258637.

It can be written as a sum of positive squares in only one way, i.e., 44964778401 + 2306784841 = 212049^2 + 48029^2 .

It is not an unprimeable number, because it can be changed into a prime (47271563249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11817890809 + ... + 11817890812.

Almost surely, 2^47271563242 is an apocalyptic number.

47271563242 is a deficient number, since it is larger than the sum of its proper divisors (23635781624).

47271563242 is a wasteful number, since it uses less digits than its factorization.

47271563242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23635781623.

The product of its digits is 564480, while the sum is 43.

The spelling of 47271563242 in words is "forty-seven billion, two hundred seventy-one million, five hundred sixty-three thousand, two hundred forty-two".