47334643381 has 2 divisors, whose sum is σ = 47334643382. Its totient is φ = 47334643380.

The previous prime is 47334643331. The next prime is 47334643441. The reversal of 47334643381 is 18334643374.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37013912100 + 10320731281 = 192390^2 + 101591^2 .

It is a cyclic number.

It is not a de Polignac number, because 47334643381 - 2⁷ = 47334643253 is a prime.

It is a super-2 number, since 2×47334643381² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47334643331) 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 as a sum of consecutive naturals, namely, 23667321690 + 23667321691.

It is an arithmetic number, because the mean of its divisors is an integer number (23667321691).

Almost surely, 2^47334643381 is an apocalyptic number.

It is an amenable number.

47334643381 is a deficient number, since it is larger than the sum of its proper divisors (1).

47334643381 is an equidigital number, since it uses as much as digits as its factorization.

47334643381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1741824, while the sum is 46.

The spelling of 47334643381 in words is "forty-seven billion, three hundred thirty-four million, six hundred forty-three thousand, three hundred eighty-one".