42847417650971 has 2 divisors, whose sum is σ = 42847417650972. Its totient is φ = 42847417650970.

The previous prime is 42847417650929. The next prime is 42847417651033. The reversal of 42847417650971 is 17905671474824.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42847417650971 - 2⁴² = 38449371139867 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42847417650898 and 42847417650907.

It is not a weakly prime, because it can be changed into another prime (42847417650571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21423708825485 + 21423708825486.

It is an arithmetic number, because the mean of its divisors is an integer number (21423708825486).

Almost surely, 2^{42847417650971} is an apocalyptic number.

42847417650971 is a deficient number, since it is larger than the sum of its proper divisors (1).

42847417650971 is an equidigital number, since it uses as much as digits as its factorization.

42847417650971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 94832640, while the sum is 65.

The spelling of 42847417650971 in words is "forty-two trillion, eight hundred forty-seven billion, four hundred seventeen million, six hundred fifty thousand, nine hundred seventy-one".