42520163471 has 2 divisors, whose sum is σ = 42520163472. Its totient is φ = 42520163470.

The previous prime is 42520163461. The next prime is 42520163551. The reversal of 42520163471 is 17436102524.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42520163471 - 2¹⁸ = 42519901327 is a prime.

It is a super-3 number, since 3×42520163471³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42520163401) 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, 21260081735 + 21260081736.

It is an arithmetic number, because the mean of its divisors is an integer number (21260081736).

Almost surely, 2^42520163471 is an apocalyptic number.

42520163471 is a deficient number, since it is larger than the sum of its proper divisors (1).

42520163471 is an equidigital number, since it uses as much as digits as its factorization.

42520163471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 35.

Adding to 42520163471 its reverse (17436102524), we get a palindrome (59956265995).

The spelling of 42520163471 in words is "forty-two billion, five hundred twenty million, one hundred sixty-three thousand, four hundred seventy-one".