47243237057 has 4 divisors (see below), whose sum is σ = 47730280836. Its totient is φ = 46756193280.

The previous prime is 47243237051. The next prime is 47243237113. The reversal of 47243237057 is 75073234274.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75073234274 = 2 ⋅37536617137.

It can be written as a sum of positive squares in 2 ways, for example, as 21837746176 + 25405490881 = 147776^2 + 159391^2 .

It is a cyclic number.

It is not a de Polignac number, because 47243237057 - 2⁸ = 47243236801 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47243236999 and 47243237017.

It is not an unprimeable number, because it can be changed into a prime (47243237051) 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, 243521744 + ... + 243521937.

It is an arithmetic number, because the mean of its divisors is an integer number (11932570209).

Almost surely, 2^47243237057 is an apocalyptic number.

It is an amenable number.

47243237057 is a deficient number, since it is larger than the sum of its proper divisors (487043779).

47243237057 is an equidigital number, since it uses as much as digits as its factorization.

47243237057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487043778.

The product of its (nonzero) digits is 987840, while the sum is 44.

The spelling of 47243237057 in words is "forty-seven billion, two hundred forty-three million, two hundred thirty-seven thousand, fifty-seven".