47924238647 has 2 divisors, whose sum is σ = 47924238648. Its totient is φ = 47924238646.

The previous prime is 47924238643. The next prime is 47924238721. The reversal of 47924238647 is 74683242974.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47924238647 - 2² = 47924238643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47924238592 and 47924238601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47924238643) 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 as a sum of consecutive naturals, namely, 23962119323 + 23962119324.

It is an arithmetic number, because the mean of its divisors is an integer number (23962119324).

Almost surely, 2^47924238647 is an apocalyptic number.

47924238647 is a deficient number, since it is larger than the sum of its proper divisors (1).

47924238647 is an equidigital number, since it uses as much as digits as its factorization.

47924238647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16257024, while the sum is 56.

The spelling of 47924238647 in words is "forty-seven billion, nine hundred twenty-four million, two hundred thirty-eight thousand, six hundred forty-seven".