47231718847 has 2 divisors, whose sum is σ = 47231718848. Its totient is φ = 47231718846.

The previous prime is 47231718797. The next prime is 47231718893. The reversal of 47231718847 is 74881713274.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47231718847 - 2¹⁵ = 47231686079 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47231718794 and 47231718803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47241718847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23615859423 + 23615859424.

It is an arithmetic number, because the mean of its divisors is an integer number (23615859424).

Almost surely, 2^47231718847 is an apocalyptic number.

47231718847 is a deficient number, since it is larger than the sum of its proper divisors (1).

47231718847 is an equidigital number, since it uses as much as digits as its factorization.

47231718847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2107392, while the sum is 52.

The spelling of 47231718847 in words is "forty-seven billion, two hundred thirty-one million, seven hundred eighteen thousand, eight hundred forty-seven".