47631843841 has 4 divisors (see below), whose sum is σ = 47666842884. Its totient is φ = 47596844800.

The previous prime is 47631843823. The next prime is 47631843887. The reversal of 47631843841 is 14834813674.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14834813674 = 2 ⋅7417406837.

It can be written as a sum of positive squares in 2 ways, for example, as 9429186816 + 38202657025 = 97104^2 + 195455^2 .

It is a cyclic number.

It is not a de Polignac number, because 47631843841 - 2²³ = 47623455233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47631843811) 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, 17497480 + ... + 17500201.

It is an arithmetic number, because the mean of its divisors is an integer number (11916710721).

Almost surely, 2^47631843841 is an apocalyptic number.

It is an amenable number.

47631843841 is a deficient number, since it is larger than the sum of its proper divisors (34999043).

47631843841 is a wasteful number, since it uses less digits than its factorization.

47631843841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34999042.

The product of its digits is 1548288, while the sum is 49.

The spelling of 47631843841 in words is "forty-seven billion, six hundred thirty-one million, eight hundred forty-three thousand, eight hundred forty-one".