42474165641 has 2 divisors, whose sum is σ = 42474165642. Its totient is φ = 42474165640.

The previous prime is 42474165583. The next prime is 42474165647. The reversal of 42474165641 is 14656147424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35279733241 + 7194432400 = 187829^2 + 84820^2 .

It is a cyclic number.

It is not a de Polignac number, because 42474165641 - 2¹⁸ = 42473903497 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42474165592 and 42474165601.

It is not a weakly prime, because it can be changed into another prime (42474165647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21237082820 + 21237082821.

It is an arithmetic number, because the mean of its divisors is an integer number (21237082821).

Almost surely, 2^42474165641 is an apocalyptic number.

It is an amenable number.

42474165641 is a deficient number, since it is larger than the sum of its proper divisors (1).

42474165641 is an equidigital number, since it uses as much as digits as its factorization.

42474165641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 645120, while the sum is 44.

The spelling of 42474165641 in words is "forty-two billion, four hundred seventy-four million, one hundred sixty-five thousand, six hundred forty-one".