42847412263181 has 2 divisors, whose sum is σ = 42847412263182. Its totient is φ = 42847412263180.

The previous prime is 42847412263133. The next prime is 42847412263189. The reversal of 42847412263181 is 18136221474824.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22320985291081 + 20526426972100 = 4724509^2 + 4530610^2 .

It is a cyclic number.

It is not a de Polignac number, because 42847412263181 - 2¹⁴ = 42847412246797 is a prime.

It is a super-2 number, since 2×42847412263181² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42847412263189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21423706131590 + 21423706131591.

It is an arithmetic number, because the mean of its divisors is an integer number (21423706131591).

Almost surely, 2^{42847412263181} is an apocalyptic number.

It is an amenable number.

42847412263181 is a deficient number, since it is larger than the sum of its proper divisors (1).

42847412263181 is an equidigital number, since it uses as much as digits as its factorization.

42847412263181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4128768, while the sum is 53.

The spelling of 42847412263181 in words is "forty-two trillion, eight hundred forty-seven billion, four hundred twelve million, two hundred sixty-three thousand, one hundred eighty-one".