47143111481 has 2 divisors, whose sum is σ = 47143111482. Its totient is φ = 47143111480.

The previous prime is 47143111471. The next prime is 47143111493. The reversal of 47143111481 is 18411134174.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39396295225 + 7746816256 = 198485^2 + 88016^2 .

It is a cyclic number.

It is not a de Polignac number, because 47143111481 - 2¹⁰ = 47143110457 is a prime.

It is a super-2 number, since 2×47143111481² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47143111441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23571555740 + 23571555741.

It is an arithmetic number, because the mean of its divisors is an integer number (23571555741).

Almost surely, 2^47143111481 is an apocalyptic number.

It is an amenable number.

47143111481 is a deficient number, since it is larger than the sum of its proper divisors (1).

47143111481 is an equidigital number, since it uses as much as digits as its factorization.

47143111481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10752, while the sum is 35.

The spelling of 47143111481 in words is "forty-seven billion, one hundred forty-three million, one hundred eleven thousand, four hundred eighty-one".