42532847065 has 4 divisors (see below), whose sum is σ = 51039416484. Its totient is φ = 34026277648.

The previous prime is 42532847053. The next prime is 42532847099. The reversal of 42532847065 is 56074823524.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17268062464 + 25264784601 = 131408^2 + 158949^2 .

It is a cyclic number.

It is not a de Polignac number, because 42532847065 - 2¹⁷ = 42532715993 is a prime.

It is a super-2 number, since 2×42532847065² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4253284702 + ... + 4253284711.

It is an arithmetic number, because the mean of its divisors is an integer number (12759854121).

Almost surely, 2^42532847065 is an apocalyptic number.

It is an amenable number.

42532847065 is a deficient number, since it is larger than the sum of its proper divisors (8506569419).

42532847065 is an equidigital number, since it uses as much as digits as its factorization.

42532847065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8506569418.

The product of its (nonzero) digits is 1612800, while the sum is 46.

The spelling of 42532847065 in words is "forty-two billion, five hundred thirty-two million, eight hundred forty-seven thousand, sixty-five".