42532774469 has 2 divisors, whose sum is σ = 42532774470. Its totient is φ = 42532774468.

The previous prime is 42532774451. The next prime is 42532774483. The reversal of 42532774469 is 96447723524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42349524100 + 183250369 = 205790^2 + 13537^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42532774469 is a prime.

It is a super-2 number, since 2×42532774469² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42532774469.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42532776469) 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, 21266387234 + 21266387235.

It is an arithmetic number, because the mean of its divisors is an integer number (21266387235).

Almost surely, 2^42532774469 is an apocalyptic number.

It is an amenable number.

42532774469 is a deficient number, since it is larger than the sum of its proper divisors (1).

42532774469 is an equidigital number, since it uses as much as digits as its factorization.

42532774469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10160640, while the sum is 53.

The spelling of 42532774469 in words is "forty-two billion, five hundred thirty-two million, seven hundred seventy-four thousand, four hundred sixty-nine".