42471306653 has 2 divisors, whose sum is σ = 42471306654. Its totient is φ = 42471306652.

The previous prime is 42471306637. The next prime is 42471306659. The reversal of 42471306653 is 35660317424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36358099684 + 6113206969 = 190678^2 + 78187^2 .

It is a cyclic number.

It is not a de Polignac number, because 42471306653 - 2⁴ = 42471306637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42471306653.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42471306659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21235653326 + 21235653327.

It is an arithmetic number, because the mean of its divisors is an integer number (21235653327).

Almost surely, 2^42471306653 is an apocalyptic number.

It is an amenable number.

42471306653 is a deficient number, since it is larger than the sum of its proper divisors (1).

42471306653 is an equidigital number, since it uses as much as digits as its factorization.

42471306653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 41.

The spelling of 42471306653 in words is "forty-two billion, four hundred seventy-one million, three hundred six thousand, six hundred fifty-three".