47843832457 has 4 divisors (see below), whose sum is σ = 47844871060. Its totient is φ = 47842793856.

The previous prime is 47843832403. The next prime is 47843832497. The reversal of 47843832457 is 75423834874.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12867726096 + 34976106361 = 113436^2 + 187019^2 .

It is a cyclic number.

It is not a de Polignac number, because 47843832457 - 2³⁵ = 13484094089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47843832398 and 47843832407.

It is not an unprimeable number, because it can be changed into a prime (47843832497) 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 in 3 ways as a sum of consecutive naturals, for example, 446832 + ... + 543457.

It is an arithmetic number, because the mean of its divisors is an integer number (11961217765).

Almost surely, 2^47843832457 is an apocalyptic number.

It is an amenable number.

47843832457 is a deficient number, since it is larger than the sum of its proper divisors (1038603).

47843832457 is an equidigital number, since it uses as much as digits as its factorization.

47843832457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038602.

The product of its digits is 18063360, while the sum is 55.

The spelling of 47843832457 in words is "forty-seven billion, eight hundred forty-three million, eight hundred thirty-two thousand, four hundred fifty-seven".